diff options
Diffstat (limited to 'drivers/media/platform/qcom/camss/camss.c')
| -rw-r--r-- | drivers/media/platform/qcom/camss/camss.c | 1816 |
1 files changed, 1816 insertions, 0 deletions
diff --git a/drivers/media/platform/qcom/camss/camss.c b/drivers/media/platform/qcom/camss/camss.c new file mode 100644 index 000000000..a30461de3 --- /dev/null +++ b/drivers/media/platform/qcom/camss/camss.c @@ -0,0 +1,1816 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * camss.c + * + * Qualcomm MSM Camera Subsystem - Core + * + * Copyright (c) 2015, The Linux Foundation. All rights reserved. + * Copyright (C) 2015-2018 Linaro Ltd. + */ +#include <linux/clk.h> +#include <linux/interconnect.h> +#include <linux/media-bus-format.h> +#include <linux/media.h> +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/of.h> +#include <linux/of_graph.h> +#include <linux/pm_runtime.h> +#include <linux/pm_domain.h> +#include <linux/slab.h> +#include <linux/videodev2.h> + +#include <media/media-device.h> +#include <media/v4l2-async.h> +#include <media/v4l2-device.h> +#include <media/v4l2-mc.h> +#include <media/v4l2-fwnode.h> + +#include "camss.h" + +#define CAMSS_CLOCK_MARGIN_NUMERATOR 105 +#define CAMSS_CLOCK_MARGIN_DENOMINATOR 100 + +static const struct resources csiphy_res_8x16[] = { + /* CSIPHY0 */ + { + .regulators = {}, + .clock = { "top_ahb", "ispif_ahb", "ahb", "csiphy0_timer" }, + .clock_rate = { { 0 }, + { 0 }, + { 0 }, + { 100000000, 200000000 } }, + .reg = { "csiphy0", "csiphy0_clk_mux" }, + .interrupt = { "csiphy0" } + }, + + /* CSIPHY1 */ + { + .regulators = {}, + .clock = { "top_ahb", "ispif_ahb", "ahb", "csiphy1_timer" }, + .clock_rate = { { 0 }, + { 0 }, + { 0 }, + { 100000000, 200000000 } }, + .reg = { "csiphy1", "csiphy1_clk_mux" }, + .interrupt = { "csiphy1" } + } +}; + +static const struct resources csid_res_8x16[] = { + /* CSID0 */ + { + .regulators = { "vdda" }, + .clock = { "top_ahb", "ispif_ahb", "csi0_ahb", "ahb", + "csi0", "csi0_phy", "csi0_pix", "csi0_rdi" }, + .clock_rate = { { 0 }, + { 0 }, + { 0 }, + { 0 }, + { 100000000, 200000000 }, + { 0 }, + { 0 }, + { 0 } }, + .reg = { "csid0" }, + .interrupt = { "csid0" } + }, + + /* CSID1 */ + { + .regulators = { "vdda" }, + .clock = { "top_ahb", "ispif_ahb", "csi1_ahb", "ahb", + "csi1", "csi1_phy", "csi1_pix", "csi1_rdi" }, + .clock_rate = { { 0 }, + { 0 }, + { 0 }, + { 0 }, + { 100000000, 200000000 }, + { 0 }, + { 0 }, + { 0 } }, + .reg = { "csid1" }, + .interrupt = { "csid1" } + }, +}; + +static const struct resources_ispif ispif_res_8x16 = { + /* ISPIF */ + .clock = { "top_ahb", "ahb", "ispif_ahb", + "csi0", "csi0_pix", "csi0_rdi", + "csi1", "csi1_pix", "csi1_rdi" }, + .clock_for_reset = { "vfe0", "csi_vfe0" }, + .reg = { "ispif", "csi_clk_mux" }, + .interrupt = "ispif" + +}; + +static const struct resources vfe_res_8x16[] = { + /* VFE0 */ + { + .regulators = {}, + .clock = { "top_ahb", "vfe0", "csi_vfe0", + "vfe_ahb", "vfe_axi", "ahb" }, + .clock_rate = { { 0 }, + { 50000000, 80000000, 100000000, 160000000, + 177780000, 200000000, 266670000, 320000000, + 400000000, 465000000 }, + { 0 }, + { 0 }, + { 0 }, + { 0 }, + { 0 }, + { 0 }, + { 0 } }, + .reg = { "vfe0" }, + .interrupt = { "vfe0" } + } +}; + +static const struct resources csiphy_res_8x96[] = { + /* CSIPHY0 */ + { + .regulators = {}, + .clock = { "top_ahb", "ispif_ahb", "ahb", "csiphy0_timer" }, + .clock_rate = { { 0 }, + { 0 }, + { 0 }, + { 100000000, 200000000, 266666667 } }, + .reg = { "csiphy0", "csiphy0_clk_mux" }, + .interrupt = { "csiphy0" } + }, + + /* CSIPHY1 */ + { + .regulators = {}, + .clock = { "top_ahb", "ispif_ahb", "ahb", "csiphy1_timer" }, + .clock_rate = { { 0 }, + { 0 }, + { 0 }, + { 100000000, 200000000, 266666667 } }, + .reg = { "csiphy1", "csiphy1_clk_mux" }, + .interrupt = { "csiphy1" } + }, + + /* CSIPHY2 */ + { + .regulators = {}, + .clock = { "top_ahb", "ispif_ahb", "ahb", "csiphy2_timer" }, + .clock_rate = { { 0 }, + { 0 }, + { 0 }, + { 100000000, 200000000, 266666667 } }, + .reg = { "csiphy2", "csiphy2_clk_mux" }, + .interrupt = { "csiphy2" } + } +}; + +static const struct resources csid_res_8x96[] = { + /* CSID0 */ + { + .regulators = { "vdda" }, + .clock = { "top_ahb", "ispif_ahb", "csi0_ahb", "ahb", + "csi0", "csi0_phy", "csi0_pix", "csi0_rdi" }, + .clock_rate = { { 0 }, + { 0 }, + { 0 }, + { 0 }, + { 100000000, 200000000, 266666667 }, + { 0 }, + { 0 }, + { 0 } }, + .reg = { "csid0" }, + .interrupt = { "csid0" } + }, + + /* CSID1 */ + { + .regulators = { "vdda" }, + .clock = { "top_ahb", "ispif_ahb", "csi1_ahb", "ahb", + "csi1", "csi1_phy", "csi1_pix", "csi1_rdi" }, + .clock_rate = { { 0 }, + { 0 }, + { 0 }, + { 0 }, + { 100000000, 200000000, 266666667 }, + { 0 }, + { 0 }, + { 0 } }, + .reg = { "csid1" }, + .interrupt = { "csid1" } + }, + + /* CSID2 */ + { + .regulators = { "vdda" }, + .clock = { "top_ahb", "ispif_ahb", "csi2_ahb", "ahb", + "csi2", "csi2_phy", "csi2_pix", "csi2_rdi" }, + .clock_rate = { { 0 }, + { 0 }, + { 0 }, + { 0 }, + { 100000000, 200000000, 266666667 }, + { 0 }, + { 0 }, + { 0 } }, + .reg = { "csid2" }, + .interrupt = { "csid2" } + }, + + /* CSID3 */ + { + .regulators = { "vdda" }, + .clock = { "top_ahb", "ispif_ahb", "csi3_ahb", "ahb", + "csi3", "csi3_phy", "csi3_pix", "csi3_rdi" }, + .clock_rate = { { 0 }, + { 0 }, + { 0 }, + { 0 }, + { 100000000, 200000000, 266666667 }, + { 0 }, + { 0 }, + { 0 } }, + .reg = { "csid3" }, + .interrupt = { "csid3" } + } +}; + +static const struct resources_ispif ispif_res_8x96 = { + /* ISPIF */ + .clock = { "top_ahb", "ahb", "ispif_ahb", + "csi0", "csi0_pix", "csi0_rdi", + "csi1", "csi1_pix", "csi1_rdi", + "csi2", "csi2_pix", "csi2_rdi", + "csi3", "csi3_pix", "csi3_rdi" }, + .clock_for_reset = { "vfe0", "csi_vfe0", "vfe1", "csi_vfe1" }, + .reg = { "ispif", "csi_clk_mux" }, + .interrupt = "ispif" +}; + +static const struct resources vfe_res_8x96[] = { + /* VFE0 */ + { + .regulators = {}, + .clock = { "top_ahb", "ahb", "vfe0", "csi_vfe0", "vfe_ahb", + "vfe0_ahb", "vfe_axi", "vfe0_stream"}, + .clock_rate = { { 0 }, + { 0 }, + { 75000000, 100000000, 300000000, + 320000000, 480000000, 600000000 }, + { 0 }, + { 0 }, + { 0 }, + { 0 }, + { 0 } }, + .reg = { "vfe0" }, + .interrupt = { "vfe0" } + }, + + /* VFE1 */ + { + .regulators = {}, + .clock = { "top_ahb", "ahb", "vfe1", "csi_vfe1", "vfe_ahb", + "vfe1_ahb", "vfe_axi", "vfe1_stream"}, + .clock_rate = { { 0 }, + { 0 }, + { 75000000, 100000000, 300000000, + 320000000, 480000000, 600000000 }, + { 0 }, + { 0 }, + { 0 }, + { 0 }, + { 0 } }, + .reg = { "vfe1" }, + .interrupt = { "vfe1" } + } +}; + +static const struct resources csiphy_res_660[] = { + /* CSIPHY0 */ + { + .regulators = {}, + .clock = { "top_ahb", "ispif_ahb", "ahb", "csiphy0_timer", + "csi0_phy", "csiphy_ahb2crif" }, + .clock_rate = { { 0 }, + { 0 }, + { 0 }, + { 100000000, 200000000, 269333333 }, + { 0 } }, + .reg = { "csiphy0", "csiphy0_clk_mux" }, + .interrupt = { "csiphy0" } + }, + + /* CSIPHY1 */ + { + .regulators = {}, + .clock = { "top_ahb", "ispif_ahb", "ahb", "csiphy1_timer", + "csi1_phy", "csiphy_ahb2crif" }, + .clock_rate = { { 0 }, + { 0 }, + { 0 }, + { 100000000, 200000000, 269333333 }, + { 0 } }, + .reg = { "csiphy1", "csiphy1_clk_mux" }, + .interrupt = { "csiphy1" } + }, + + /* CSIPHY2 */ + { + .regulators = {}, + .clock = { "top_ahb", "ispif_ahb", "ahb", "csiphy2_timer", + "csi2_phy", "csiphy_ahb2crif" }, + .clock_rate = { { 0 }, + { 0 }, + { 0 }, + { 100000000, 200000000, 269333333 }, + { 0 } }, + .reg = { "csiphy2", "csiphy2_clk_mux" }, + .interrupt = { "csiphy2" } + } +}; + +static const struct resources csid_res_660[] = { + /* CSID0 */ + { + .regulators = { "vdda", "vdd_sec" }, + .clock = { "top_ahb", "ispif_ahb", "csi0_ahb", "ahb", + "csi0", "csi0_phy", "csi0_pix", "csi0_rdi", + "cphy_csid0" }, + .clock_rate = { { 0 }, + { 0 }, + { 0 }, + { 0 }, + { 100000000, 200000000, 310000000, + 404000000, 465000000 }, + { 0 }, + { 0 }, + { 0 }, + { 0 } }, + .reg = { "csid0" }, + .interrupt = { "csid0" } + }, + + /* CSID1 */ + { + .regulators = { "vdda", "vdd_sec" }, + .clock = { "top_ahb", "ispif_ahb", "csi1_ahb", "ahb", + "csi1", "csi1_phy", "csi1_pix", "csi1_rdi", + "cphy_csid1" }, + .clock_rate = { { 0 }, + { 0 }, + { 0 }, + { 0 }, + { 100000000, 200000000, 310000000, + 404000000, 465000000 }, + { 0 }, + { 0 }, + { 0 }, + { 0 } }, + .reg = { "csid1" }, + .interrupt = { "csid1" } + }, + + /* CSID2 */ + { + .regulators = { "vdda", "vdd_sec" }, + .clock = { "top_ahb", "ispif_ahb", "csi2_ahb", "ahb", + "csi2", "csi2_phy", "csi2_pix", "csi2_rdi", + "cphy_csid2" }, + .clock_rate = { { 0 }, + { 0 }, + { 0 }, + { 0 }, + { 100000000, 200000000, 310000000, + 404000000, 465000000 }, + { 0 }, + { 0 }, + { 0 }, + { 0 } }, + .reg = { "csid2" }, + .interrupt = { "csid2" } + }, + + /* CSID3 */ + { + .regulators = { "vdda", "vdd_sec" }, + .clock = { "top_ahb", "ispif_ahb", "csi3_ahb", "ahb", + "csi3", "csi3_phy", "csi3_pix", "csi3_rdi", + "cphy_csid3" }, + .clock_rate = { { 0 }, + { 0 }, + { 0 }, + { 0 }, + { 100000000, 200000000, 310000000, + 404000000, 465000000 }, + { 0 }, + { 0 }, + { 0 }, + { 0 } }, + .reg = { "csid3" }, + .interrupt = { "csid3" } + } +}; + +static const struct resources_ispif ispif_res_660 = { + /* ISPIF */ + .clock = { "top_ahb", "ahb", "ispif_ahb", + "csi0", "csi0_pix", "csi0_rdi", + "csi1", "csi1_pix", "csi1_rdi", + "csi2", "csi2_pix", "csi2_rdi", + "csi3", "csi3_pix", "csi3_rdi" }, + .clock_for_reset = { "vfe0", "csi_vfe0", "vfe1", "csi_vfe1" }, + .reg = { "ispif", "csi_clk_mux" }, + .interrupt = "ispif" +}; + +static const struct resources vfe_res_660[] = { + /* VFE0 */ + { + .regulators = {}, + .clock = { "throttle_axi", "top_ahb", "ahb", "vfe0", + "csi_vfe0", "vfe_ahb", "vfe0_ahb", "vfe_axi", + "vfe0_stream"}, + .clock_rate = { { 0 }, + { 0 }, + { 0 }, + { 120000000, 200000000, 256000000, + 300000000, 404000000, 480000000, + 540000000, 576000000 }, + { 0 }, + { 0 }, + { 0 }, + { 0 }, + { 0 } }, + .reg = { "vfe0" }, + .interrupt = { "vfe0" } + }, + + /* VFE1 */ + { + .regulators = {}, + .clock = { "throttle_axi", "top_ahb", "ahb", "vfe1", + "csi_vfe1", "vfe_ahb", "vfe1_ahb", "vfe_axi", + "vfe1_stream"}, + .clock_rate = { { 0 }, + { 0 }, + { 0 }, + { 120000000, 200000000, 256000000, + 300000000, 404000000, 480000000, + 540000000, 576000000 }, + { 0 }, + { 0 }, + { 0 }, + { 0 }, + { 0 } }, + .reg = { "vfe1" }, + .interrupt = { "vfe1" } + } +}; + +static const struct resources csiphy_res_845[] = { + /* CSIPHY0 */ + { + .regulators = {}, + .clock = { "camnoc_axi", "soc_ahb", "slow_ahb_src", + "cpas_ahb", "cphy_rx_src", "csiphy0", + "csiphy0_timer_src", "csiphy0_timer" }, + .clock_rate = { { 0 }, + { 0 }, + { 0 }, + { 0 }, + { 0 }, + { 0 }, + { 0 }, + { 19200000, 240000000, 269333333 } }, + .reg = { "csiphy0" }, + .interrupt = { "csiphy0" } + }, + + /* CSIPHY1 */ + { + .regulators = {}, + .clock = { "camnoc_axi", "soc_ahb", "slow_ahb_src", + "cpas_ahb", "cphy_rx_src", "csiphy1", + "csiphy1_timer_src", "csiphy1_timer" }, + .clock_rate = { { 0 }, + { 0 }, + { 0 }, + { 0 }, + { 0 }, + { 0 }, + { 0 }, + { 19200000, 240000000, 269333333 } }, + .reg = { "csiphy1" }, + .interrupt = { "csiphy1" } + }, + + /* CSIPHY2 */ + { + .regulators = {}, + .clock = { "camnoc_axi", "soc_ahb", "slow_ahb_src", + "cpas_ahb", "cphy_rx_src", "csiphy2", + "csiphy2_timer_src", "csiphy2_timer" }, + .clock_rate = { { 0 }, + { 0 }, + { 0 }, + { 0 }, + { 0 }, + { 0 }, + { 0 }, + { 19200000, 240000000, 269333333 } }, + .reg = { "csiphy2" }, + .interrupt = { "csiphy2" } + }, + + /* CSIPHY3 */ + { + .regulators = {}, + .clock = { "camnoc_axi", "soc_ahb", "slow_ahb_src", + "cpas_ahb", "cphy_rx_src", "csiphy3", + "csiphy3_timer_src", "csiphy3_timer" }, + .clock_rate = { { 0 }, + { 0 }, + { 0 }, + { 0 }, + { 0 }, + { 0 }, + { 0 }, + { 19200000, 240000000, 269333333 } }, + .reg = { "csiphy3" }, + .interrupt = { "csiphy3" } + } +}; + +static const struct resources csid_res_845[] = { + /* CSID0 */ + { + .regulators = { "vdda-phy", "vdda-pll" }, + .clock = { "cpas_ahb", "cphy_rx_src", "slow_ahb_src", + "soc_ahb", "vfe0", "vfe0_src", + "vfe0_cphy_rx", "csi0", + "csi0_src" }, + .clock_rate = { { 0 }, + { 384000000 }, + { 80000000 }, + { 0 }, + { 19200000, 100000000, 320000000, 404000000, 480000000, 600000000 }, + { 320000000 }, + { 0 }, + { 19200000, 75000000, 384000000, 538666667 }, + { 384000000 } }, + .reg = { "csid0" }, + .interrupt = { "csid0" } + }, + + /* CSID1 */ + { + .regulators = { "vdda-phy", "vdda-pll" }, + .clock = { "cpas_ahb", "cphy_rx_src", "slow_ahb_src", + "soc_ahb", "vfe1", "vfe1_src", + "vfe1_cphy_rx", "csi1", + "csi1_src" }, + .clock_rate = { { 0 }, + { 384000000 }, + { 80000000 }, + { 0 }, + { 19200000, 100000000, 320000000, 404000000, 480000000, 600000000 }, + { 320000000 }, + { 0 }, + { 19200000, 75000000, 384000000, 538666667 }, + { 384000000 } }, + .reg = { "csid1" }, + .interrupt = { "csid1" } + }, + + /* CSID2 */ + { + .regulators = { "vdda-phy", "vdda-pll" }, + .clock = { "cpas_ahb", "cphy_rx_src", "slow_ahb_src", + "soc_ahb", "vfe_lite", "vfe_lite_src", + "vfe_lite_cphy_rx", "csi2", + "csi2_src" }, + .clock_rate = { { 0 }, + { 384000000 }, + { 80000000 }, + { 0 }, + { 19200000, 100000000, 320000000, 404000000, 480000000, 600000000 }, + { 320000000 }, + { 0 }, + { 19200000, 75000000, 384000000, 538666667 }, + { 384000000 } }, + .reg = { "csid2" }, + .interrupt = { "csid2" } + } +}; + +static const struct resources vfe_res_845[] = { + /* VFE0 */ + { + .regulators = {}, + .clock = { "camnoc_axi", "cpas_ahb", "slow_ahb_src", + "soc_ahb", "vfe0", "vfe0_axi", + "vfe0_src", "csi0", + "csi0_src"}, + .clock_rate = { { 0 }, + { 0 }, + { 80000000 }, + { 0 }, + { 19200000, 100000000, 320000000, 404000000, 480000000, 600000000 }, + { 0 }, + { 320000000 }, + { 19200000, 75000000, 384000000, 538666667 }, + { 384000000 } }, + .reg = { "vfe0" }, + .interrupt = { "vfe0" } + }, + + /* VFE1 */ + { + .regulators = {}, + .clock = { "camnoc_axi", "cpas_ahb", "slow_ahb_src", + "soc_ahb", "vfe1", "vfe1_axi", + "vfe1_src", "csi1", + "csi1_src"}, + .clock_rate = { { 0 }, + { 0 }, + { 80000000 }, + { 0 }, + { 19200000, 100000000, 320000000, 404000000, 480000000, 600000000 }, + { 0 }, + { 320000000 }, + { 19200000, 75000000, 384000000, 538666667 }, + { 384000000 } }, + .reg = { "vfe1" }, + .interrupt = { "vfe1" } + }, + + /* VFE-lite */ + { + .regulators = {}, + .clock = { "camnoc_axi", "cpas_ahb", "slow_ahb_src", + "soc_ahb", "vfe_lite", + "vfe_lite_src", "csi2", + "csi2_src"}, + .clock_rate = { { 0 }, + { 0 }, + { 80000000 }, + { 0 }, + { 19200000, 100000000, 320000000, 404000000, 480000000, 600000000 }, + { 320000000 }, + { 19200000, 75000000, 384000000, 538666667 }, + { 384000000 } }, + .reg = { "vfe_lite" }, + .interrupt = { "vfe_lite" } + } +}; + +static const struct resources csiphy_res_8250[] = { + /* CSIPHY0 */ + { + .regulators = {}, + .clock = { "csiphy0", "csiphy0_timer" }, + .clock_rate = { { 400000000 }, + { 300000000 } }, + .reg = { "csiphy0" }, + .interrupt = { "csiphy0" } + }, + /* CSIPHY1 */ + { + .regulators = {}, + .clock = { "csiphy1", "csiphy1_timer" }, + .clock_rate = { { 400000000 }, + { 300000000 } }, + .reg = { "csiphy1" }, + .interrupt = { "csiphy1" } + }, + /* CSIPHY2 */ + { + .regulators = {}, + .clock = { "csiphy2", "csiphy2_timer" }, + .clock_rate = { { 400000000 }, + { 300000000 } }, + .reg = { "csiphy2" }, + .interrupt = { "csiphy2" } + }, + /* CSIPHY3 */ + { + .regulators = {}, + .clock = { "csiphy3", "csiphy3_timer" }, + .clock_rate = { { 400000000 }, + { 300000000 } }, + .reg = { "csiphy3" }, + .interrupt = { "csiphy3" } + }, + /* CSIPHY4 */ + { + .regulators = {}, + .clock = { "csiphy4", "csiphy4_timer" }, + .clock_rate = { { 400000000 }, + { 300000000 } }, + .reg = { "csiphy4" }, + .interrupt = { "csiphy4" } + }, + /* CSIPHY5 */ + { + .regulators = {}, + .clock = { "csiphy5", "csiphy5_timer" }, + .clock_rate = { { 400000000 }, + { 300000000 } }, + .reg = { "csiphy5" }, + .interrupt = { "csiphy5" } + } +}; + +static const struct resources csid_res_8250[] = { + /* CSID0 */ + { + .regulators = { "vdda-phy", "vdda-pll" }, + .clock = { "vfe0_csid", "vfe0_cphy_rx", "vfe0", "vfe0_areg", "vfe0_ahb" }, + .clock_rate = { { 400000000 }, + { 400000000 }, + { 350000000, 475000000, 576000000, 720000000 }, + { 100000000, 200000000, 300000000, 400000000 }, + { 0 } }, + .reg = { "csid0" }, + .interrupt = { "csid0" } + }, + /* CSID1 */ + { + .regulators = { "vdda-phy", "vdda-pll" }, + .clock = { "vfe1_csid", "vfe1_cphy_rx", "vfe1", "vfe1_areg", "vfe1_ahb" }, + .clock_rate = { { 400000000 }, + { 400000000 }, + { 350000000, 475000000, 576000000, 720000000 }, + { 100000000, 200000000, 300000000, 400000000 }, + { 0 } }, + .reg = { "csid1" }, + .interrupt = { "csid1" } + }, + /* CSID2 */ + { + .regulators = { "vdda-phy", "vdda-pll" }, + .clock = { "vfe_lite_csid", "vfe_lite_cphy_rx", "vfe_lite", "vfe_lite_ahb" }, + .clock_rate = { { 400000000 }, + { 400000000 }, + { 400000000, 480000000 }, + { 0 } }, + .reg = { "csid2" }, + .interrupt = { "csid2" } + }, + /* CSID3 */ + { + .regulators = { "vdda-phy", "vdda-pll" }, + .clock = { "vfe_lite_csid", "vfe_lite_cphy_rx", "vfe_lite", "vfe_lite_ahb" }, + .clock_rate = { { 400000000 }, + { 400000000 }, + { 400000000, 480000000 }, + { 0 } }, + .reg = { "csid3" }, + .interrupt = { "csid3" } + } +}; + +static const struct resources vfe_res_8250[] = { + /* VFE0 */ + { + .regulators = {}, + .clock = { "camnoc_axi_src", "slow_ahb_src", "cpas_ahb", + "camnoc_axi", "vfe0_ahb", "vfe0_areg", "vfe0", + "vfe0_axi", "cam_hf_axi" }, + .clock_rate = { { 19200000, 300000000, 400000000, 480000000 }, + { 19200000, 80000000 }, + { 19200000 }, + { 0 }, + { 0 }, + { 100000000, 200000000, 300000000, 400000000 }, + { 350000000, 475000000, 576000000, 720000000 }, + { 0 }, + { 0 } }, + .reg = { "vfe0" }, + .interrupt = { "vfe0" } + }, + /* VFE1 */ + { + .regulators = {}, + .clock = { "camnoc_axi_src", "slow_ahb_src", "cpas_ahb", + "camnoc_axi", "vfe1_ahb", "vfe1_areg", "vfe1", + "vfe1_axi", "cam_hf_axi" }, + .clock_rate = { { 19200000, 300000000, 400000000, 480000000 }, + { 19200000, 80000000 }, + { 19200000 }, + { 0 }, + { 0 }, + { 100000000, 200000000, 300000000, 400000000 }, + { 350000000, 475000000, 576000000, 720000000 }, + { 0 }, + { 0 } }, + .reg = { "vfe1" }, + .interrupt = { "vfe1" } + }, + /* VFE2 (lite) */ + { + .regulators = {}, + .clock = { "camnoc_axi_src", "slow_ahb_src", "cpas_ahb", + "camnoc_axi", "vfe_lite_ahb", "vfe_lite_axi", + "vfe_lite", "cam_hf_axi" }, + .clock_rate = { { 19200000, 300000000, 400000000, 480000000 }, + { 19200000, 80000000 }, + { 19200000 }, + { 0 }, + { 0 }, + { 0 }, + { 400000000, 480000000 }, + { 0 } }, + .reg = { "vfe_lite0" }, + .interrupt = { "vfe_lite0" } + }, + /* VFE3 (lite) */ + { + .regulators = {}, + .clock = { "camnoc_axi_src", "slow_ahb_src", "cpas_ahb", + "camnoc_axi", "vfe_lite_ahb", "vfe_lite_axi", + "vfe_lite", "cam_hf_axi" }, + .clock_rate = { { 19200000, 300000000, 400000000, 480000000 }, + { 19200000, 80000000 }, + { 19200000 }, + { 0 }, + { 0 }, + { 0 }, + { 400000000, 480000000 }, + { 0 } }, + .reg = { "vfe_lite1" }, + .interrupt = { "vfe_lite1" } + }, +}; + +static const struct resources_icc icc_res_sm8250[] = { + { + .name = "cam_ahb", + .icc_bw_tbl.avg = 38400, + .icc_bw_tbl.peak = 76800, + }, + { + .name = "cam_hf_0_mnoc", + .icc_bw_tbl.avg = 2097152, + .icc_bw_tbl.peak = 2097152, + }, + { + .name = "cam_sf_0_mnoc", + .icc_bw_tbl.avg = 0, + .icc_bw_tbl.peak = 2097152, + }, + { + .name = "cam_sf_icp_mnoc", + .icc_bw_tbl.avg = 2097152, + .icc_bw_tbl.peak = 2097152, + }, +}; + +/* + * camss_add_clock_margin - Add margin to clock frequency rate + * @rate: Clock frequency rate + * + * When making calculations with physical clock frequency values + * some safety margin must be added. Add it. + */ +inline void camss_add_clock_margin(u64 *rate) +{ + *rate *= CAMSS_CLOCK_MARGIN_NUMERATOR; + *rate = div_u64(*rate, CAMSS_CLOCK_MARGIN_DENOMINATOR); +} + +/* + * camss_enable_clocks - Enable multiple clocks + * @nclocks: Number of clocks in clock array + * @clock: Clock array + * @dev: Device + * + * Return 0 on success or a negative error code otherwise + */ +int camss_enable_clocks(int nclocks, struct camss_clock *clock, + struct device *dev) +{ + int ret; + int i; + + for (i = 0; i < nclocks; i++) { + ret = clk_prepare_enable(clock[i].clk); + if (ret) { + dev_err(dev, "clock enable failed: %d\n", ret); + goto error; + } + } + + return 0; + +error: + for (i--; i >= 0; i--) + clk_disable_unprepare(clock[i].clk); + + return ret; +} + +/* + * camss_disable_clocks - Disable multiple clocks + * @nclocks: Number of clocks in clock array + * @clock: Clock array + */ +void camss_disable_clocks(int nclocks, struct camss_clock *clock) +{ + int i; + + for (i = nclocks - 1; i >= 0; i--) + clk_disable_unprepare(clock[i].clk); +} + +/* + * camss_find_sensor - Find a linked media entity which represents a sensor + * @entity: Media entity to start searching from + * + * Return a pointer to sensor media entity or NULL if not found + */ +struct media_entity *camss_find_sensor(struct media_entity *entity) +{ + struct media_pad *pad; + + while (1) { + pad = &entity->pads[0]; + if (!(pad->flags & MEDIA_PAD_FL_SINK)) + return NULL; + + pad = media_pad_remote_pad_first(pad); + if (!pad || !is_media_entity_v4l2_subdev(pad->entity)) + return NULL; + + entity = pad->entity; + + if (entity->function == MEDIA_ENT_F_CAM_SENSOR) + return entity; + } +} + +/** + * camss_get_link_freq - Get link frequency from sensor + * @entity: Media entity in the current pipeline + * @bpp: Number of bits per pixel for the current format + * @lanes: Number of lanes in the link to the sensor + * + * Return link frequency on success or a negative error code otherwise + */ +s64 camss_get_link_freq(struct media_entity *entity, unsigned int bpp, + unsigned int lanes) +{ + struct media_entity *sensor; + struct v4l2_subdev *subdev; + + sensor = camss_find_sensor(entity); + if (!sensor) + return -ENODEV; + + subdev = media_entity_to_v4l2_subdev(sensor); + + return v4l2_get_link_freq(subdev->ctrl_handler, bpp, 2 * lanes); +} + +/* + * camss_get_pixel_clock - Get pixel clock rate from sensor + * @entity: Media entity in the current pipeline + * @pixel_clock: Received pixel clock value + * + * Return 0 on success or a negative error code otherwise + */ +int camss_get_pixel_clock(struct media_entity *entity, u64 *pixel_clock) +{ + struct media_entity *sensor; + struct v4l2_subdev *subdev; + struct v4l2_ctrl *ctrl; + + sensor = camss_find_sensor(entity); + if (!sensor) + return -ENODEV; + + subdev = media_entity_to_v4l2_subdev(sensor); + + ctrl = v4l2_ctrl_find(subdev->ctrl_handler, V4L2_CID_PIXEL_RATE); + + if (!ctrl) + return -EINVAL; + + *pixel_clock = v4l2_ctrl_g_ctrl_int64(ctrl); + + return 0; +} + +int camss_pm_domain_on(struct camss *camss, int id) +{ + int ret = 0; + + if (id < camss->vfe_num) { + struct vfe_device *vfe = &camss->vfe[id]; + + ret = vfe->ops->pm_domain_on(vfe); + } + + return ret; +} + +void camss_pm_domain_off(struct camss *camss, int id) +{ + if (id < camss->vfe_num) { + struct vfe_device *vfe = &camss->vfe[id]; + + vfe->ops->pm_domain_off(vfe); + } +} + +/* + * camss_of_parse_endpoint_node - Parse port endpoint node + * @dev: Device + * @node: Device node to be parsed + * @csd: Parsed data from port endpoint node + * + * Return 0 on success or a negative error code on failure + */ +static int camss_of_parse_endpoint_node(struct device *dev, + struct device_node *node, + struct camss_async_subdev *csd) +{ + struct csiphy_lanes_cfg *lncfg = &csd->interface.csi2.lane_cfg; + struct v4l2_mbus_config_mipi_csi2 *mipi_csi2; + struct v4l2_fwnode_endpoint vep = { { 0 } }; + unsigned int i; + + v4l2_fwnode_endpoint_parse(of_fwnode_handle(node), &vep); + + csd->interface.csiphy_id = vep.base.port; + + mipi_csi2 = &vep.bus.mipi_csi2; + lncfg->clk.pos = mipi_csi2->clock_lane; + lncfg->clk.pol = mipi_csi2->lane_polarities[0]; + lncfg->num_data = mipi_csi2->num_data_lanes; + + lncfg->data = devm_kcalloc(dev, + lncfg->num_data, sizeof(*lncfg->data), + GFP_KERNEL); + if (!lncfg->data) + return -ENOMEM; + + for (i = 0; i < lncfg->num_data; i++) { + lncfg->data[i].pos = mipi_csi2->data_lanes[i]; + lncfg->data[i].pol = mipi_csi2->lane_polarities[i + 1]; + } + + return 0; +} + +/* + * camss_of_parse_ports - Parse ports node + * @dev: Device + * @notifier: v4l2_device notifier data + * + * Return number of "port" nodes found in "ports" node + */ +static int camss_of_parse_ports(struct camss *camss) +{ + struct device *dev = camss->dev; + struct device_node *node = NULL; + struct device_node *remote = NULL; + int ret, num_subdevs = 0; + + for_each_endpoint_of_node(dev->of_node, node) { + struct camss_async_subdev *csd; + + if (!of_device_is_available(node)) + continue; + + remote = of_graph_get_remote_port_parent(node); + if (!remote) { + dev_err(dev, "Cannot get remote parent\n"); + ret = -EINVAL; + goto err_cleanup; + } + + csd = v4l2_async_nf_add_fwnode(&camss->notifier, + of_fwnode_handle(remote), + struct camss_async_subdev); + of_node_put(remote); + if (IS_ERR(csd)) { + ret = PTR_ERR(csd); + goto err_cleanup; + } + + ret = camss_of_parse_endpoint_node(dev, node, csd); + if (ret < 0) + goto err_cleanup; + + num_subdevs++; + } + + return num_subdevs; + +err_cleanup: + of_node_put(node); + return ret; +} + +/* + * camss_init_subdevices - Initialize subdev structures and resources + * @camss: CAMSS device + * + * Return 0 on success or a negative error code on failure + */ +static int camss_init_subdevices(struct camss *camss) +{ + const struct resources *csiphy_res; + const struct resources *csid_res; + const struct resources_ispif *ispif_res; + const struct resources *vfe_res; + unsigned int i; + int ret; + + if (camss->version == CAMSS_8x16) { + csiphy_res = csiphy_res_8x16; + csid_res = csid_res_8x16; + ispif_res = &ispif_res_8x16; + vfe_res = vfe_res_8x16; + } else if (camss->version == CAMSS_8x96) { + csiphy_res = csiphy_res_8x96; + csid_res = csid_res_8x96; + ispif_res = &ispif_res_8x96; + vfe_res = vfe_res_8x96; + } else if (camss->version == CAMSS_660) { + csiphy_res = csiphy_res_660; + csid_res = csid_res_660; + ispif_res = &ispif_res_660; + vfe_res = vfe_res_660; + } else if (camss->version == CAMSS_845) { + csiphy_res = csiphy_res_845; + csid_res = csid_res_845; + /* Titan VFEs don't have an ISPIF */ + ispif_res = NULL; + vfe_res = vfe_res_845; + } else if (camss->version == CAMSS_8250) { + csiphy_res = csiphy_res_8250; + csid_res = csid_res_8250; + /* Titan VFEs don't have an ISPIF */ + ispif_res = NULL; + vfe_res = vfe_res_8250; + } else { + return -EINVAL; + } + + for (i = 0; i < camss->csiphy_num; i++) { + ret = msm_csiphy_subdev_init(camss, &camss->csiphy[i], + &csiphy_res[i], i); + if (ret < 0) { + dev_err(camss->dev, + "Failed to init csiphy%d sub-device: %d\n", + i, ret); + return ret; + } + } + + /* note: SM8250 requires VFE to be initialized before CSID */ + for (i = 0; i < camss->vfe_num; i++) { + ret = msm_vfe_subdev_init(camss, &camss->vfe[i], + &vfe_res[i], i); + if (ret < 0) { + dev_err(camss->dev, + "Fail to init vfe%d sub-device: %d\n", i, ret); + return ret; + } + } + + for (i = 0; i < camss->csid_num; i++) { + ret = msm_csid_subdev_init(camss, &camss->csid[i], + &csid_res[i], i); + if (ret < 0) { + dev_err(camss->dev, + "Failed to init csid%d sub-device: %d\n", + i, ret); + return ret; + } + } + + ret = msm_ispif_subdev_init(camss, ispif_res); + if (ret < 0) { + dev_err(camss->dev, "Failed to init ispif sub-device: %d\n", + ret); + return ret; + } + + return 0; +} + +/* + * camss_register_entities - Register subdev nodes and create links + * @camss: CAMSS device + * + * Return 0 on success or a negative error code on failure + */ +static int camss_register_entities(struct camss *camss) +{ + int i, j, k; + int ret; + + for (i = 0; i < camss->csiphy_num; i++) { + ret = msm_csiphy_register_entity(&camss->csiphy[i], + &camss->v4l2_dev); + if (ret < 0) { + dev_err(camss->dev, + "Failed to register csiphy%d entity: %d\n", + i, ret); + goto err_reg_csiphy; + } + } + + for (i = 0; i < camss->csid_num; i++) { + ret = msm_csid_register_entity(&camss->csid[i], + &camss->v4l2_dev); + if (ret < 0) { + dev_err(camss->dev, + "Failed to register csid%d entity: %d\n", + i, ret); + goto err_reg_csid; + } + } + + ret = msm_ispif_register_entities(camss->ispif, + &camss->v4l2_dev); + if (ret < 0) { + dev_err(camss->dev, "Failed to register ispif entities: %d\n", + ret); + goto err_reg_ispif; + } + + for (i = 0; i < camss->vfe_num; i++) { + ret = msm_vfe_register_entities(&camss->vfe[i], + &camss->v4l2_dev); + if (ret < 0) { + dev_err(camss->dev, + "Failed to register vfe%d entities: %d\n", + i, ret); + goto err_reg_vfe; + } + } + + for (i = 0; i < camss->csiphy_num; i++) { + for (j = 0; j < camss->csid_num; j++) { + ret = media_create_pad_link( + &camss->csiphy[i].subdev.entity, + MSM_CSIPHY_PAD_SRC, + &camss->csid[j].subdev.entity, + MSM_CSID_PAD_SINK, + 0); + if (ret < 0) { + dev_err(camss->dev, + "Failed to link %s->%s entities: %d\n", + camss->csiphy[i].subdev.entity.name, + camss->csid[j].subdev.entity.name, + ret); + goto err_link; + } + } + } + + if (camss->ispif) { + for (i = 0; i < camss->csid_num; i++) { + for (j = 0; j < camss->ispif->line_num; j++) { + ret = media_create_pad_link( + &camss->csid[i].subdev.entity, + MSM_CSID_PAD_SRC, + &camss->ispif->line[j].subdev.entity, + MSM_ISPIF_PAD_SINK, + 0); + if (ret < 0) { + dev_err(camss->dev, + "Failed to link %s->%s entities: %d\n", + camss->csid[i].subdev.entity.name, + camss->ispif->line[j].subdev.entity.name, + ret); + goto err_link; + } + } + } + + for (i = 0; i < camss->ispif->line_num; i++) + for (k = 0; k < camss->vfe_num; k++) + for (j = 0; j < camss->vfe[k].line_num; j++) { + struct v4l2_subdev *ispif = &camss->ispif->line[i].subdev; + struct v4l2_subdev *vfe = &camss->vfe[k].line[j].subdev; + + ret = media_create_pad_link(&ispif->entity, + MSM_ISPIF_PAD_SRC, + &vfe->entity, + MSM_VFE_PAD_SINK, + 0); + if (ret < 0) { + dev_err(camss->dev, + "Failed to link %s->%s entities: %d\n", + ispif->entity.name, + vfe->entity.name, + ret); + goto err_link; + } + } + } else { + for (i = 0; i < camss->csid_num; i++) + for (k = 0; k < camss->vfe_num; k++) + for (j = 0; j < camss->vfe[k].line_num; j++) { + struct v4l2_subdev *csid = &camss->csid[i].subdev; + struct v4l2_subdev *vfe = &camss->vfe[k].line[j].subdev; + + ret = media_create_pad_link(&csid->entity, + MSM_CSID_PAD_SRC, + &vfe->entity, + MSM_VFE_PAD_SINK, + 0); + if (ret < 0) { + dev_err(camss->dev, + "Failed to link %s->%s entities: %d\n", + csid->entity.name, + vfe->entity.name, + ret); + goto err_link; + } + } + } + + return 0; + +err_link: + i = camss->vfe_num; +err_reg_vfe: + for (i--; i >= 0; i--) + msm_vfe_unregister_entities(&camss->vfe[i]); + +err_reg_ispif: + msm_ispif_unregister_entities(camss->ispif); + + i = camss->csid_num; +err_reg_csid: + for (i--; i >= 0; i--) + msm_csid_unregister_entity(&camss->csid[i]); + + i = camss->csiphy_num; +err_reg_csiphy: + for (i--; i >= 0; i--) + msm_csiphy_unregister_entity(&camss->csiphy[i]); + + return ret; +} + +/* + * camss_unregister_entities - Unregister subdev nodes + * @camss: CAMSS device + * + * Return 0 on success or a negative error code on failure + */ +static void camss_unregister_entities(struct camss *camss) +{ + unsigned int i; + + for (i = 0; i < camss->csiphy_num; i++) + msm_csiphy_unregister_entity(&camss->csiphy[i]); + + for (i = 0; i < camss->csid_num; i++) + msm_csid_unregister_entity(&camss->csid[i]); + + msm_ispif_unregister_entities(camss->ispif); + + for (i = 0; i < camss->vfe_num; i++) + msm_vfe_unregister_entities(&camss->vfe[i]); +} + +static int camss_subdev_notifier_bound(struct v4l2_async_notifier *async, + struct v4l2_subdev *subdev, + struct v4l2_async_subdev *asd) +{ + struct camss *camss = container_of(async, struct camss, notifier); + struct camss_async_subdev *csd = + container_of(asd, struct camss_async_subdev, asd); + u8 id = csd->interface.csiphy_id; + struct csiphy_device *csiphy = &camss->csiphy[id]; + + csiphy->cfg.csi2 = &csd->interface.csi2; + subdev->host_priv = csiphy; + + return 0; +} + +static int camss_subdev_notifier_complete(struct v4l2_async_notifier *async) +{ + struct camss *camss = container_of(async, struct camss, notifier); + struct v4l2_device *v4l2_dev = &camss->v4l2_dev; + struct v4l2_subdev *sd; + int ret; + + list_for_each_entry(sd, &v4l2_dev->subdevs, list) { + if (sd->host_priv) { + struct media_entity *sensor = &sd->entity; + struct csiphy_device *csiphy = + (struct csiphy_device *) sd->host_priv; + struct media_entity *input = &csiphy->subdev.entity; + unsigned int i; + + for (i = 0; i < sensor->num_pads; i++) { + if (sensor->pads[i].flags & MEDIA_PAD_FL_SOURCE) + break; + } + if (i == sensor->num_pads) { + dev_err(camss->dev, + "No source pad in external entity\n"); + return -EINVAL; + } + + ret = media_create_pad_link(sensor, i, + input, MSM_CSIPHY_PAD_SINK, + MEDIA_LNK_FL_IMMUTABLE | MEDIA_LNK_FL_ENABLED); + if (ret < 0) { + dev_err(camss->dev, + "Failed to link %s->%s entities: %d\n", + sensor->name, input->name, ret); + return ret; + } + } + } + + ret = v4l2_device_register_subdev_nodes(&camss->v4l2_dev); + if (ret < 0) + return ret; + + return media_device_register(&camss->media_dev); +} + +static const struct v4l2_async_notifier_operations camss_subdev_notifier_ops = { + .bound = camss_subdev_notifier_bound, + .complete = camss_subdev_notifier_complete, +}; + +static const struct media_device_ops camss_media_ops = { + .link_notify = v4l2_pipeline_link_notify, +}; + +static int camss_configure_pd(struct camss *camss) +{ + struct device *dev = camss->dev; + int i; + int ret; + + camss->genpd_num = of_count_phandle_with_args(dev->of_node, + "power-domains", + "#power-domain-cells"); + if (camss->genpd_num < 0) { + dev_err(dev, "Power domains are not defined for camss\n"); + return camss->genpd_num; + } + + /* + * If a platform device has just one power domain, then it is attached + * at platform_probe() level, thus there shall be no need and even no + * option to attach it again, this is the case for CAMSS on MSM8916. + */ + if (camss->genpd_num == 1) + return 0; + + camss->genpd = devm_kmalloc_array(dev, camss->genpd_num, + sizeof(*camss->genpd), GFP_KERNEL); + if (!camss->genpd) + return -ENOMEM; + + camss->genpd_link = devm_kmalloc_array(dev, camss->genpd_num, + sizeof(*camss->genpd_link), + GFP_KERNEL); + if (!camss->genpd_link) + return -ENOMEM; + + /* + * VFE power domains are in the beginning of the list, and while all + * power domains should be attached, only if TITAN_TOP power domain is + * found in the list, it should be linked over here. + */ + for (i = 0; i < camss->genpd_num; i++) { + camss->genpd[i] = dev_pm_domain_attach_by_id(camss->dev, i); + if (IS_ERR(camss->genpd[i])) { + ret = PTR_ERR(camss->genpd[i]); + goto fail_pm; + } + } + + if (i > camss->vfe_num) { + camss->genpd_link[i - 1] = device_link_add(camss->dev, camss->genpd[i - 1], + DL_FLAG_STATELESS | DL_FLAG_PM_RUNTIME | + DL_FLAG_RPM_ACTIVE); + if (!camss->genpd_link[i - 1]) { + ret = -EINVAL; + goto fail_pm; + } + } + + return 0; + +fail_pm: + for (--i ; i >= 0; i--) + dev_pm_domain_detach(camss->genpd[i], true); + + return ret; +} + +static int camss_icc_get(struct camss *camss) +{ + const struct resources_icc *icc_res; + int nbr_icc_paths = 0; + int i; + + if (camss->version == CAMSS_8250) { + icc_res = &icc_res_sm8250[0]; + nbr_icc_paths = ICC_SM8250_COUNT; + } + + for (i = 0; i < nbr_icc_paths; i++) { + camss->icc_path[i] = devm_of_icc_get(camss->dev, + icc_res[i].name); + if (IS_ERR(camss->icc_path[i])) + return PTR_ERR(camss->icc_path[i]); + + camss->icc_bw_tbl[i] = icc_res[i].icc_bw_tbl; + } + + return 0; +} + +static void camss_genpd_cleanup(struct camss *camss) +{ + int i; + + if (camss->genpd_num == 1) + return; + + if (camss->genpd_num > camss->vfe_num) + device_link_del(camss->genpd_link[camss->genpd_num - 1]); + + for (i = 0; i < camss->genpd_num; i++) + dev_pm_domain_detach(camss->genpd[i], true); +} + +/* + * camss_probe - Probe CAMSS platform device + * @pdev: Pointer to CAMSS platform device + * + * Return 0 on success or a negative error code on failure + */ +static int camss_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct camss *camss; + int num_subdevs, ret; + + camss = devm_kzalloc(dev, sizeof(*camss), GFP_KERNEL); + if (!camss) + return -ENOMEM; + + atomic_set(&camss->ref_count, 0); + camss->dev = dev; + platform_set_drvdata(pdev, camss); + + if (of_device_is_compatible(dev->of_node, "qcom,msm8916-camss")) { + camss->version = CAMSS_8x16; + camss->csiphy_num = 2; + camss->csid_num = 2; + camss->vfe_num = 1; + } else if (of_device_is_compatible(dev->of_node, + "qcom,msm8996-camss")) { + camss->version = CAMSS_8x96; + camss->csiphy_num = 3; + camss->csid_num = 4; + camss->vfe_num = 2; + } else if (of_device_is_compatible(dev->of_node, + "qcom,sdm660-camss")) { + camss->version = CAMSS_660; + camss->csiphy_num = 3; + camss->csid_num = 4; + camss->vfe_num = 2; + } else if (of_device_is_compatible(dev->of_node, + "qcom,sdm845-camss")) { + camss->version = CAMSS_845; + camss->csiphy_num = 4; + camss->csid_num = 3; + camss->vfe_num = 3; + } else if (of_device_is_compatible(dev->of_node, + "qcom,sm8250-camss")) { + camss->version = CAMSS_8250; + camss->csiphy_num = 6; + camss->csid_num = 4; + camss->vfe_num = 4; + } else { + return -EINVAL; + } + + camss->csiphy = devm_kcalloc(dev, camss->csiphy_num, + sizeof(*camss->csiphy), GFP_KERNEL); + if (!camss->csiphy) + return -ENOMEM; + + camss->csid = devm_kcalloc(dev, camss->csid_num, sizeof(*camss->csid), + GFP_KERNEL); + if (!camss->csid) + return -ENOMEM; + + if (camss->version == CAMSS_8x16 || + camss->version == CAMSS_8x96) { + camss->ispif = devm_kcalloc(dev, 1, sizeof(*camss->ispif), GFP_KERNEL); + if (!camss->ispif) + return -ENOMEM; + } + + camss->vfe = devm_kcalloc(dev, camss->vfe_num, sizeof(*camss->vfe), + GFP_KERNEL); + if (!camss->vfe) + return -ENOMEM; + + ret = camss_icc_get(camss); + if (ret < 0) + return ret; + + ret = camss_configure_pd(camss); + if (ret < 0) { + dev_err(dev, "Failed to configure power domains: %d\n", ret); + return ret; + } + + ret = camss_init_subdevices(camss); + if (ret < 0) + goto err_genpd_cleanup; + + ret = dma_set_mask_and_coherent(dev, 0xffffffff); + if (ret) + goto err_genpd_cleanup; + + camss->media_dev.dev = camss->dev; + strscpy(camss->media_dev.model, "Qualcomm Camera Subsystem", + sizeof(camss->media_dev.model)); + camss->media_dev.ops = &camss_media_ops; + media_device_init(&camss->media_dev); + + camss->v4l2_dev.mdev = &camss->media_dev; + ret = v4l2_device_register(camss->dev, &camss->v4l2_dev); + if (ret < 0) { + dev_err(dev, "Failed to register V4L2 device: %d\n", ret); + goto err_genpd_cleanup; + } + + v4l2_async_nf_init(&camss->notifier); + + num_subdevs = camss_of_parse_ports(camss); + if (num_subdevs < 0) { + ret = num_subdevs; + goto err_v4l2_device_unregister; + } + + ret = camss_register_entities(camss); + if (ret < 0) + goto err_v4l2_device_unregister; + + if (num_subdevs) { + camss->notifier.ops = &camss_subdev_notifier_ops; + + ret = v4l2_async_nf_register(&camss->v4l2_dev, + &camss->notifier); + if (ret) { + dev_err(dev, + "Failed to register async subdev nodes: %d\n", + ret); + goto err_register_subdevs; + } + } else { + ret = v4l2_device_register_subdev_nodes(&camss->v4l2_dev); + if (ret < 0) { + dev_err(dev, "Failed to register subdev nodes: %d\n", + ret); + goto err_register_subdevs; + } + + ret = media_device_register(&camss->media_dev); + if (ret < 0) { + dev_err(dev, "Failed to register media device: %d\n", + ret); + goto err_register_subdevs; + } + } + + pm_runtime_enable(dev); + + return 0; + +err_register_subdevs: + camss_unregister_entities(camss); +err_v4l2_device_unregister: + v4l2_device_unregister(&camss->v4l2_dev); + v4l2_async_nf_cleanup(&camss->notifier); +err_genpd_cleanup: + camss_genpd_cleanup(camss); + + return ret; +} + +void camss_delete(struct camss *camss) +{ + v4l2_device_unregister(&camss->v4l2_dev); + media_device_unregister(&camss->media_dev); + media_device_cleanup(&camss->media_dev); + + pm_runtime_disable(camss->dev); +} + +/* + * camss_remove - Remove CAMSS platform device + * @pdev: Pointer to CAMSS platform device + * + * Always returns 0. + */ +static void camss_remove(struct platform_device *pdev) +{ + struct camss *camss = platform_get_drvdata(pdev); + + v4l2_async_nf_unregister(&camss->notifier); + v4l2_async_nf_cleanup(&camss->notifier); + camss_unregister_entities(camss); + + if (atomic_read(&camss->ref_count) == 0) + camss_delete(camss); + + camss_genpd_cleanup(camss); +} + +static const struct of_device_id camss_dt_match[] = { + { .compatible = "qcom,msm8916-camss" }, + { .compatible = "qcom,msm8996-camss" }, + { .compatible = "qcom,sdm660-camss" }, + { .compatible = "qcom,sdm845-camss" }, + { .compatible = "qcom,sm8250-camss" }, + { } +}; + +MODULE_DEVICE_TABLE(of, camss_dt_match); + +static int __maybe_unused camss_runtime_suspend(struct device *dev) +{ + struct camss *camss = dev_get_drvdata(dev); + int nbr_icc_paths = 0; + int i; + int ret; + + if (camss->version == CAMSS_8250) + nbr_icc_paths = ICC_SM8250_COUNT; + + for (i = 0; i < nbr_icc_paths; i++) { + ret = icc_set_bw(camss->icc_path[i], 0, 0); + if (ret) + return ret; + } + + return 0; +} + +static int __maybe_unused camss_runtime_resume(struct device *dev) +{ + struct camss *camss = dev_get_drvdata(dev); + int nbr_icc_paths = 0; + int i; + int ret; + + if (camss->version == CAMSS_8250) + nbr_icc_paths = ICC_SM8250_COUNT; + + for (i = 0; i < nbr_icc_paths; i++) { + ret = icc_set_bw(camss->icc_path[i], + camss->icc_bw_tbl[i].avg, + camss->icc_bw_tbl[i].peak); + if (ret) + return ret; + } + + return 0; +} + +static const struct dev_pm_ops camss_pm_ops = { + SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, + pm_runtime_force_resume) + SET_RUNTIME_PM_OPS(camss_runtime_suspend, camss_runtime_resume, NULL) +}; + +static struct platform_driver qcom_camss_driver = { + .probe = camss_probe, + .remove_new = camss_remove, + .driver = { + .name = "qcom-camss", + .of_match_table = camss_dt_match, + .pm = &camss_pm_ops, + }, +}; + +module_platform_driver(qcom_camss_driver); + +MODULE_ALIAS("platform:qcom-camss"); +MODULE_DESCRIPTION("Qualcomm Camera Subsystem driver"); +MODULE_AUTHOR("Todor Tomov <todor.tomov@linaro.org>"); +MODULE_LICENSE("GPL v2"); |