diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-18 18:50:03 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-18 18:50:03 +0000 |
commit | 01a69402cf9d38ff180345d55c2ee51c7e89fbc7 (patch) | |
tree | b406c5242a088c4f59c6e4b719b783f43aca6ae9 /drivers/ufs/host | |
parent | Adding upstream version 6.7.12. (diff) | |
download | linux-01a69402cf9d38ff180345d55c2ee51c7e89fbc7.tar.xz linux-01a69402cf9d38ff180345d55c2ee51c7e89fbc7.zip |
Adding upstream version 6.8.9.upstream/6.8.9
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/ufs/host')
-rw-r--r-- | drivers/ufs/host/ufs-exynos.c | 7 | ||||
-rw-r--r-- | drivers/ufs/host/ufs-hisi.c | 11 | ||||
-rw-r--r-- | drivers/ufs/host/ufs-mediatek.c | 12 | ||||
-rw-r--r-- | drivers/ufs/host/ufs-qcom.c | 494 | ||||
-rw-r--r-- | drivers/ufs/host/ufs-qcom.h | 57 | ||||
-rw-r--r-- | drivers/ufs/host/ufshcd-pltfrm.c | 69 | ||||
-rw-r--r-- | drivers/ufs/host/ufshcd-pltfrm.h | 10 |
7 files changed, 210 insertions, 450 deletions
diff --git a/drivers/ufs/host/ufs-exynos.c b/drivers/ufs/host/ufs-exynos.c index 71bd6dbc05..734d40f99e 100644 --- a/drivers/ufs/host/ufs-exynos.c +++ b/drivers/ufs/host/ufs-exynos.c @@ -765,7 +765,7 @@ static int exynos_ufs_pre_pwr_mode(struct ufs_hba *hba, { struct exynos_ufs *ufs = ufshcd_get_variant(hba); struct phy *generic_phy = ufs->phy; - struct ufs_dev_params ufs_exynos_cap; + struct ufs_host_params host_params; int ret; if (!dev_req_params) { @@ -774,10 +774,9 @@ static int exynos_ufs_pre_pwr_mode(struct ufs_hba *hba, goto out; } - ufshcd_init_pwr_dev_param(&ufs_exynos_cap); + ufshcd_init_host_params(&host_params); - ret = ufshcd_get_pwr_dev_param(&ufs_exynos_cap, - dev_max_params, dev_req_params); + ret = ufshcd_negotiate_pwr_params(&host_params, dev_max_params, dev_req_params); if (ret) { pr_err("%s: failed to determine capabilities\n", __func__); goto out; diff --git a/drivers/ufs/host/ufs-hisi.c b/drivers/ufs/host/ufs-hisi.c index 0229ac0a8d..5ee73ff052 100644 --- a/drivers/ufs/host/ufs-hisi.c +++ b/drivers/ufs/host/ufs-hisi.c @@ -293,9 +293,9 @@ static int ufs_hisi_link_startup_notify(struct ufs_hba *hba, return err; } -static void ufs_hisi_set_dev_cap(struct ufs_dev_params *hisi_param) +static void ufs_hisi_set_dev_cap(struct ufs_host_params *host_params) { - ufshcd_init_pwr_dev_param(hisi_param); + ufshcd_init_host_params(host_params); } static void ufs_hisi_pwr_change_pre_change(struct ufs_hba *hba) @@ -365,7 +365,7 @@ static int ufs_hisi_pwr_change_notify(struct ufs_hba *hba, struct ufs_pa_layer_attr *dev_max_params, struct ufs_pa_layer_attr *dev_req_params) { - struct ufs_dev_params ufs_hisi_cap; + struct ufs_host_params host_params; int ret = 0; if (!dev_req_params) { @@ -377,9 +377,8 @@ static int ufs_hisi_pwr_change_notify(struct ufs_hba *hba, switch (status) { case PRE_CHANGE: - ufs_hisi_set_dev_cap(&ufs_hisi_cap); - ret = ufshcd_get_pwr_dev_param(&ufs_hisi_cap, - dev_max_params, dev_req_params); + ufs_hisi_set_dev_cap(&host_params); + ret = ufshcd_negotiate_pwr_params(&host_params, dev_max_params, dev_req_params); if (ret) { dev_err(hba->dev, "%s: failed to determine capabilities\n", __func__); diff --git a/drivers/ufs/host/ufs-mediatek.c b/drivers/ufs/host/ufs-mediatek.c index fc61790d28..776bca4f70 100644 --- a/drivers/ufs/host/ufs-mediatek.c +++ b/drivers/ufs/host/ufs-mediatek.c @@ -996,16 +996,14 @@ static int ufs_mtk_pre_pwr_change(struct ufs_hba *hba, struct ufs_pa_layer_attr *dev_req_params) { struct ufs_mtk_host *host = ufshcd_get_variant(hba); - struct ufs_dev_params host_cap; + struct ufs_host_params host_params; int ret; - ufshcd_init_pwr_dev_param(&host_cap); - host_cap.hs_rx_gear = UFS_HS_G5; - host_cap.hs_tx_gear = UFS_HS_G5; + ufshcd_init_host_params(&host_params); + host_params.hs_rx_gear = UFS_HS_G5; + host_params.hs_tx_gear = UFS_HS_G5; - ret = ufshcd_get_pwr_dev_param(&host_cap, - dev_max_params, - dev_req_params); + ret = ufshcd_negotiate_pwr_params(&host_params, dev_max_params, dev_req_params); if (ret) { pr_info("%s: failed to determine capabilities\n", __func__); diff --git a/drivers/ufs/host/ufs-qcom.c b/drivers/ufs/host/ufs-qcom.c index 0d38864553..bcbcf75892 100644 --- a/drivers/ufs/host/ufs-qcom.c +++ b/drivers/ufs/host/ufs-qcom.c @@ -4,26 +4,26 @@ */ #include <linux/acpi.h> -#include <linux/time.h> #include <linux/clk.h> #include <linux/delay.h> +#include <linux/devfreq.h> +#include <linux/gpio/consumer.h> #include <linux/interconnect.h> #include <linux/module.h> #include <linux/of.h> -#include <linux/platform_device.h> #include <linux/phy/phy.h> -#include <linux/gpio/consumer.h> +#include <linux/platform_device.h> #include <linux/reset-controller.h> -#include <linux/devfreq.h> +#include <linux/time.h> #include <soc/qcom/ice.h> #include <ufs/ufshcd.h> -#include "ufshcd-pltfrm.h" -#include <ufs/unipro.h> -#include "ufs-qcom.h" #include <ufs/ufshci.h> #include <ufs/ufs_quirks.h> +#include <ufs/unipro.h> +#include "ufshcd-pltfrm.h" +#include "ufs-qcom.h" #define MCQ_QCFGPTR_MASK GENMASK(7, 0) #define MCQ_QCFGPTR_UNIT 0x200 @@ -47,7 +47,7 @@ enum { TSTBUS_MAX, }; -#define QCOM_UFS_MAX_GEAR 4 +#define QCOM_UFS_MAX_GEAR 5 #define QCOM_UFS_MAX_LANE 2 enum { @@ -67,31 +67,35 @@ static const struct __ufs_qcom_bw_table { [MODE_PWM][UFS_PWM_G2][UFS_LANE_1] = { 1844, 1000 }, [MODE_PWM][UFS_PWM_G3][UFS_LANE_1] = { 3688, 1000 }, [MODE_PWM][UFS_PWM_G4][UFS_LANE_1] = { 7376, 1000 }, + [MODE_PWM][UFS_PWM_G5][UFS_LANE_1] = { 14752, 1000 }, [MODE_PWM][UFS_PWM_G1][UFS_LANE_2] = { 1844, 1000 }, [MODE_PWM][UFS_PWM_G2][UFS_LANE_2] = { 3688, 1000 }, [MODE_PWM][UFS_PWM_G3][UFS_LANE_2] = { 7376, 1000 }, [MODE_PWM][UFS_PWM_G4][UFS_LANE_2] = { 14752, 1000 }, + [MODE_PWM][UFS_PWM_G5][UFS_LANE_2] = { 29504, 1000 }, [MODE_HS_RA][UFS_HS_G1][UFS_LANE_1] = { 127796, 1000 }, [MODE_HS_RA][UFS_HS_G2][UFS_LANE_1] = { 255591, 1000 }, [MODE_HS_RA][UFS_HS_G3][UFS_LANE_1] = { 1492582, 102400 }, [MODE_HS_RA][UFS_HS_G4][UFS_LANE_1] = { 2915200, 204800 }, + [MODE_HS_RA][UFS_HS_G5][UFS_LANE_1] = { 5836800, 409600 }, [MODE_HS_RA][UFS_HS_G1][UFS_LANE_2] = { 255591, 1000 }, [MODE_HS_RA][UFS_HS_G2][UFS_LANE_2] = { 511181, 1000 }, [MODE_HS_RA][UFS_HS_G3][UFS_LANE_2] = { 1492582, 204800 }, [MODE_HS_RA][UFS_HS_G4][UFS_LANE_2] = { 2915200, 409600 }, + [MODE_HS_RA][UFS_HS_G5][UFS_LANE_2] = { 5836800, 819200 }, [MODE_HS_RB][UFS_HS_G1][UFS_LANE_1] = { 149422, 1000 }, [MODE_HS_RB][UFS_HS_G2][UFS_LANE_1] = { 298189, 1000 }, [MODE_HS_RB][UFS_HS_G3][UFS_LANE_1] = { 1492582, 102400 }, [MODE_HS_RB][UFS_HS_G4][UFS_LANE_1] = { 2915200, 204800 }, + [MODE_HS_RB][UFS_HS_G5][UFS_LANE_1] = { 5836800, 409600 }, [MODE_HS_RB][UFS_HS_G1][UFS_LANE_2] = { 298189, 1000 }, [MODE_HS_RB][UFS_HS_G2][UFS_LANE_2] = { 596378, 1000 }, [MODE_HS_RB][UFS_HS_G3][UFS_LANE_2] = { 1492582, 204800 }, [MODE_HS_RB][UFS_HS_G4][UFS_LANE_2] = { 2915200, 409600 }, + [MODE_HS_RB][UFS_HS_G5][UFS_LANE_2] = { 5836800, 819200 }, [MODE_MAX][0][0] = { 7643136, 307200 }, }; -static struct ufs_qcom_host *ufs_qcom_hosts[MAX_UFS_QCOM_HOSTS]; - static void ufs_qcom_get_default_testbus_cfg(struct ufs_qcom_host *host); static int ufs_qcom_set_core_clk_ctrl(struct ufs_hba *hba, bool is_scale_up); @@ -194,52 +198,12 @@ static inline int ufs_qcom_ice_suspend(struct ufs_qcom_host *host) } #endif -static int ufs_qcom_host_clk_get(struct device *dev, - const char *name, struct clk **clk_out, bool optional) -{ - struct clk *clk; - int err = 0; - - clk = devm_clk_get(dev, name); - if (!IS_ERR(clk)) { - *clk_out = clk; - return 0; - } - - err = PTR_ERR(clk); - - if (optional && err == -ENOENT) { - *clk_out = NULL; - return 0; - } - - if (err != -EPROBE_DEFER) - dev_err(dev, "failed to get %s err %d\n", name, err); - - return err; -} - -static int ufs_qcom_host_clk_enable(struct device *dev, - const char *name, struct clk *clk) -{ - int err = 0; - - err = clk_prepare_enable(clk); - if (err) - dev_err(dev, "%s: %s enable failed %d\n", __func__, name, err); - - return err; -} - static void ufs_qcom_disable_lane_clks(struct ufs_qcom_host *host) { if (!host->is_lane_clks_enabled) return; - clk_disable_unprepare(host->tx_l1_sync_clk); - clk_disable_unprepare(host->tx_l0_sync_clk); - clk_disable_unprepare(host->rx_l1_sync_clk); - clk_disable_unprepare(host->rx_l0_sync_clk); + clk_bulk_disable_unprepare(host->num_clks, host->clks); host->is_lane_clks_enabled = false; } @@ -247,73 +211,29 @@ static void ufs_qcom_disable_lane_clks(struct ufs_qcom_host *host) static int ufs_qcom_enable_lane_clks(struct ufs_qcom_host *host) { int err; - struct device *dev = host->hba->dev; - - if (host->is_lane_clks_enabled) - return 0; - err = ufs_qcom_host_clk_enable(dev, "rx_lane0_sync_clk", - host->rx_l0_sync_clk); + err = clk_bulk_prepare_enable(host->num_clks, host->clks); if (err) return err; - err = ufs_qcom_host_clk_enable(dev, "tx_lane0_sync_clk", - host->tx_l0_sync_clk); - if (err) - goto disable_rx_l0; - - err = ufs_qcom_host_clk_enable(dev, "rx_lane1_sync_clk", - host->rx_l1_sync_clk); - if (err) - goto disable_tx_l0; - - err = ufs_qcom_host_clk_enable(dev, "tx_lane1_sync_clk", - host->tx_l1_sync_clk); - if (err) - goto disable_rx_l1; - host->is_lane_clks_enabled = true; return 0; - -disable_rx_l1: - clk_disable_unprepare(host->rx_l1_sync_clk); -disable_tx_l0: - clk_disable_unprepare(host->tx_l0_sync_clk); -disable_rx_l0: - clk_disable_unprepare(host->rx_l0_sync_clk); - - return err; } static int ufs_qcom_init_lane_clks(struct ufs_qcom_host *host) { - int err = 0; + int err; struct device *dev = host->hba->dev; if (has_acpi_companion(dev)) return 0; - err = ufs_qcom_host_clk_get(dev, "rx_lane0_sync_clk", - &host->rx_l0_sync_clk, false); - if (err) + err = devm_clk_bulk_get_all(dev, &host->clks); + if (err <= 0) return err; - err = ufs_qcom_host_clk_get(dev, "tx_lane0_sync_clk", - &host->tx_l0_sync_clk, false); - if (err) - return err; - - /* In case of single lane per direction, don't read lane1 clocks */ - if (host->hba->lanes_per_direction > 1) { - err = ufs_qcom_host_clk_get(dev, "rx_lane1_sync_clk", - &host->rx_l1_sync_clk, false); - if (err) - return err; - - err = ufs_qcom_host_clk_get(dev, "tx_lane1_sync_clk", - &host->tx_l1_sync_clk, true); - } + host->num_clks = err; return 0; } @@ -321,7 +241,7 @@ static int ufs_qcom_init_lane_clks(struct ufs_qcom_host *host) static int ufs_qcom_check_hibern8(struct ufs_hba *hba) { int err; - u32 tx_fsm_val = 0; + u32 tx_fsm_val; unsigned long timeout = jiffies + msecs_to_jiffies(HBRN8_POLL_TOUT_MS); do { @@ -360,9 +280,7 @@ static int ufs_qcom_check_hibern8(struct ufs_hba *hba) static void ufs_qcom_select_unipro_mode(struct ufs_qcom_host *host) { - ufshcd_rmwl(host->hba, QUNIPRO_SEL, - ufs_qcom_cap_qunipro(host) ? QUNIPRO_SEL : 0, - REG_UFS_CFG1); + ufshcd_rmwl(host->hba, QUNIPRO_SEL, QUNIPRO_SEL, REG_UFS_CFG1); if (host->hw_ver.major >= 0x05) ufshcd_rmwl(host->hba, QUNIPRO_G4_SEL, 0, REG_UFS_CFG0); @@ -376,18 +294,15 @@ static void ufs_qcom_select_unipro_mode(struct ufs_qcom_host *host) */ static int ufs_qcom_host_reset(struct ufs_hba *hba) { - int ret = 0; + int ret; struct ufs_qcom_host *host = ufshcd_get_variant(hba); - bool reenable_intr = false; + bool reenable_intr; - if (!host->core_reset) { - dev_warn(hba->dev, "%s: reset control not set\n", __func__); + if (!host->core_reset) return 0; - } reenable_intr = hba->is_irq_enabled; - disable_irq(hba->irq); - hba->is_irq_enabled = false; + ufshcd_disable_irq(hba); ret = reset_control_assert(host->core_reset); if (ret) { @@ -404,16 +319,16 @@ static int ufs_qcom_host_reset(struct ufs_hba *hba) usleep_range(200, 210); ret = reset_control_deassert(host->core_reset); - if (ret) + if (ret) { dev_err(hba->dev, "%s: core_reset deassert failed, err = %d\n", __func__, ret); + return ret; + } usleep_range(1000, 1100); - if (reenable_intr) { - enable_irq(hba->irq); - hba->is_irq_enabled = true; - } + if (reenable_intr) + ufshcd_enable_irq(hba); return 0; } @@ -422,18 +337,8 @@ static u32 ufs_qcom_get_hs_gear(struct ufs_hba *hba) { struct ufs_qcom_host *host = ufshcd_get_variant(hba); - if (host->hw_ver.major == 0x1) { - /* - * HS-G3 operations may not reliably work on legacy QCOM - * UFS host controller hardware even though capability - * exchange during link startup phase may end up - * negotiating maximum supported gear as G3. - * Hence downgrade the maximum supported gear to HS-G2. - */ - return UFS_HS_G2; - } else if (host->hw_ver.major >= 0x4) { + if (host->hw_ver.major >= 0x4) return UFS_QCOM_MAX_GEAR(ufshcd_readl(hba, REG_UFS_PARAM0)); - } /* Default is HS-G3 */ return UFS_HS_G3; @@ -442,14 +347,29 @@ static u32 ufs_qcom_get_hs_gear(struct ufs_hba *hba) static int ufs_qcom_power_up_sequence(struct ufs_hba *hba) { struct ufs_qcom_host *host = ufshcd_get_variant(hba); + struct ufs_host_params *host_params = &host->host_params; struct phy *phy = host->generic_phy; + enum phy_mode mode; int ret; + /* + * HW ver 5 can only support up to HS-G5 Rate-A due to HW limitations. + * If the HS-G5 PHY gear is used, update host_params->hs_rate to Rate-A, + * so that the subsequent power mode change shall stick to Rate-A. + */ + if (host->hw_ver.major == 0x5) { + if (host->phy_gear == UFS_HS_G5) + host_params->hs_rate = PA_HS_MODE_A; + else + host_params->hs_rate = PA_HS_MODE_B; + } + + mode = host_params->hs_rate == PA_HS_MODE_B ? PHY_MODE_UFS_HS_B : PHY_MODE_UFS_HS_A; + /* Reset UFS Host Controller and PHY */ ret = ufs_qcom_host_reset(hba); if (ret) - dev_warn(hba->dev, "%s: host reset returned %d\n", - __func__, ret); + return ret; /* phy initialization - calibrate the phy */ ret = phy_init(phy); @@ -459,7 +379,9 @@ static int ufs_qcom_power_up_sequence(struct ufs_hba *hba) return ret; } - phy_set_mode_ext(phy, PHY_MODE_UFS_HS_B, host->phy_gear); + ret = phy_set_mode_ext(phy, mode, host->phy_gear); + if (ret) + goto out_disable_phy; /* power on phy - start serdes and phy's power and clocks */ ret = phy_power_on(phy); @@ -489,9 +411,8 @@ out_disable_phy: */ static void ufs_qcom_enable_hw_clk_gating(struct ufs_hba *hba) { - ufshcd_writel(hba, - ufshcd_readl(hba, REG_UFS_CFG2) | REG_UFS_CFG2_CGC_EN_ALL, - REG_UFS_CFG2); + ufshcd_rmwl(hba, REG_UFS_CFG2_CGC_EN_ALL, REG_UFS_CFG2_CGC_EN_ALL, + REG_UFS_CFG2); /* Ensure that HW clock gating is enabled before next operations */ mb(); @@ -501,11 +422,14 @@ static int ufs_qcom_hce_enable_notify(struct ufs_hba *hba, enum ufs_notify_change_status status) { struct ufs_qcom_host *host = ufshcd_get_variant(hba); - int err = 0; + int err; switch (status) { case PRE_CHANGE: - ufs_qcom_power_up_sequence(hba); + err = ufs_qcom_power_up_sequence(hba); + if (err) + return err; + /* * The PHY PLL output is the source of tx/rx lane symbol * clocks, hence, enable the lane clocks only after PHY @@ -544,41 +468,16 @@ static int ufs_qcom_cfg_timers(struct ufs_hba *hba, u32 gear, { struct ufs_qcom_host *host = ufshcd_get_variant(hba); struct ufs_clk_info *clki; - u32 core_clk_period_in_ns; - u32 tx_clk_cycles_per_us = 0; unsigned long core_clk_rate = 0; - u32 core_clk_cycles_per_us = 0; - - static u32 pwm_fr_table[][2] = { - {UFS_PWM_G1, 0x1}, - {UFS_PWM_G2, 0x1}, - {UFS_PWM_G3, 0x1}, - {UFS_PWM_G4, 0x1}, - }; - - static u32 hs_fr_table_rA[][2] = { - {UFS_HS_G1, 0x1F}, - {UFS_HS_G2, 0x3e}, - {UFS_HS_G3, 0x7D}, - }; - - static u32 hs_fr_table_rB[][2] = { - {UFS_HS_G1, 0x24}, - {UFS_HS_G2, 0x49}, - {UFS_HS_G3, 0x92}, - }; + u32 core_clk_cycles_per_us; /* - * The Qunipro controller does not use following registers: - * SYS1CLK_1US_REG, TX_SYMBOL_CLK_1US_REG, CLK_NS_REG & - * UFS_REG_PA_LINK_STARTUP_TIMER. - * However UTP controller uses SYS1CLK_1US_REG register for Interrupt + * UTP controller uses SYS1CLK_1US_REG register for Interrupt * Aggregation logic. * It is mandatory to write SYS1CLK_1US_REG register on UFS host * controller V4.0.0 onwards. */ - if (host->hw_ver.major < 4 && ufs_qcom_cap_qunipro(host) && - !ufshcd_is_intr_aggr_allowed(hba)) + if (host->hw_ver.major < 4 && !ufshcd_is_intr_aggr_allowed(hba)) return 0; if (gear == 0) { @@ -611,79 +510,6 @@ static int ufs_qcom_cfg_timers(struct ufs_hba *hba, u32 gear, mb(); } - if (ufs_qcom_cap_qunipro(host)) - return 0; - - core_clk_period_in_ns = NSEC_PER_SEC / core_clk_rate; - core_clk_period_in_ns <<= OFFSET_CLK_NS_REG; - core_clk_period_in_ns &= MASK_CLK_NS_REG; - - switch (hs) { - case FASTAUTO_MODE: - case FAST_MODE: - if (rate == PA_HS_MODE_A) { - if (gear > ARRAY_SIZE(hs_fr_table_rA)) { - dev_err(hba->dev, - "%s: index %d exceeds table size %zu\n", - __func__, gear, - ARRAY_SIZE(hs_fr_table_rA)); - return -EINVAL; - } - tx_clk_cycles_per_us = hs_fr_table_rA[gear-1][1]; - } else if (rate == PA_HS_MODE_B) { - if (gear > ARRAY_SIZE(hs_fr_table_rB)) { - dev_err(hba->dev, - "%s: index %d exceeds table size %zu\n", - __func__, gear, - ARRAY_SIZE(hs_fr_table_rB)); - return -EINVAL; - } - tx_clk_cycles_per_us = hs_fr_table_rB[gear-1][1]; - } else { - dev_err(hba->dev, "%s: invalid rate = %d\n", - __func__, rate); - return -EINVAL; - } - break; - case SLOWAUTO_MODE: - case SLOW_MODE: - if (gear > ARRAY_SIZE(pwm_fr_table)) { - dev_err(hba->dev, - "%s: index %d exceeds table size %zu\n", - __func__, gear, - ARRAY_SIZE(pwm_fr_table)); - return -EINVAL; - } - tx_clk_cycles_per_us = pwm_fr_table[gear-1][1]; - break; - case UNCHANGED: - default: - dev_err(hba->dev, "%s: invalid mode = %d\n", __func__, hs); - return -EINVAL; - } - - if (ufshcd_readl(hba, REG_UFS_TX_SYMBOL_CLK_NS_US) != - (core_clk_period_in_ns | tx_clk_cycles_per_us)) { - /* this register 2 fields shall be written at once */ - ufshcd_writel(hba, core_clk_period_in_ns | tx_clk_cycles_per_us, - REG_UFS_TX_SYMBOL_CLK_NS_US); - /* - * make sure above write gets applied before we return from - * this function. - */ - mb(); - } - - if (update_link_startup_timer && host->hw_ver.major != 0x5) { - ufshcd_writel(hba, ((core_clk_rate / MSEC_PER_SEC) * 100), - REG_UFS_CFG0); - /* - * make sure that this configuration is applied before - * we return - */ - mb(); - } - return 0; } @@ -691,7 +517,6 @@ static int ufs_qcom_link_startup_notify(struct ufs_hba *hba, enum ufs_notify_change_status status) { int err = 0; - struct ufs_qcom_host *host = ufshcd_get_variant(hba); switch (status) { case PRE_CHANGE: @@ -702,11 +527,9 @@ static int ufs_qcom_link_startup_notify(struct ufs_hba *hba, return -EINVAL; } - if (ufs_qcom_cap_qunipro(host)) { - err = ufs_qcom_set_core_clk_ctrl(hba, true); - if (err) - dev_err(hba->dev, "cfg core clk ctrl failed\n"); - } + err = ufs_qcom_set_core_clk_ctrl(hba, true); + if (err) + dev_err(hba->dev, "cfg core clk ctrl failed\n"); /* * Some UFS devices (and may be host) have issues if LCC is * enabled. So we are setting PA_Local_TX_LCC_Enable to 0 @@ -898,7 +721,7 @@ static int ufs_qcom_pwr_change_notify(struct ufs_hba *hba, struct ufs_pa_layer_attr *dev_req_params) { struct ufs_qcom_host *host = ufshcd_get_variant(hba); - struct ufs_dev_params ufs_qcom_cap; + struct ufs_host_params *host_params = &host->host_params; int ret = 0; if (!dev_req_params) { @@ -908,15 +731,7 @@ static int ufs_qcom_pwr_change_notify(struct ufs_hba *hba, switch (status) { case PRE_CHANGE: - ufshcd_init_pwr_dev_param(&ufs_qcom_cap); - ufs_qcom_cap.hs_rate = UFS_QCOM_LIMIT_HS_RATE; - - /* This driver only supports symmetic gear setting i.e., hs_tx_gear == hs_rx_gear */ - ufs_qcom_cap.hs_tx_gear = ufs_qcom_cap.hs_rx_gear = ufs_qcom_get_hs_gear(hba); - - ret = ufshcd_get_pwr_dev_param(&ufs_qcom_cap, - dev_max_params, - dev_req_params); + ret = ufshcd_negotiate_pwr_params(host_params, dev_max_params, dev_req_params); if (ret) { dev_err(hba->dev, "%s: failed to determine capabilities\n", __func__); @@ -924,12 +739,22 @@ static int ufs_qcom_pwr_change_notify(struct ufs_hba *hba, } /* - * Update phy_gear only when the gears are scaled to a higher value. This is - * because, the PHY gear settings are backwards compatible and we only need to - * change the PHY gear settings while scaling to higher gears. + * During UFS driver probe, always update the PHY gear to match the negotiated + * gear, so that, if quirk UFSHCD_QUIRK_REINIT_AFTER_MAX_GEAR_SWITCH is enabled, + * the second init can program the optimal PHY settings. This allows one to start + * the first init with either the minimum or the maximum support gear. */ - if (dev_req_params->gear_tx > host->phy_gear) - host->phy_gear = dev_req_params->gear_tx; + if (hba->ufshcd_state == UFSHCD_STATE_RESET) { + /* + * Skip REINIT if the negotiated gear matches with the + * initial phy_gear. Otherwise, update the phy_gear to + * program the optimal gear setting during REINIT. + */ + if (host->phy_gear == dev_req_params->gear_tx) + hba->quirks &= ~UFSHCD_QUIRK_REINIT_AFTER_MAX_GEAR_SWITCH; + else + host->phy_gear = dev_req_params->gear_tx; + } /* enable the device ref clock before changing to HS mode */ if (!ufshcd_is_hs_mode(&hba->pwr_info) && @@ -1005,12 +830,7 @@ static int ufs_qcom_apply_dev_quirks(struct ufs_hba *hba) static u32 ufs_qcom_get_ufs_hci_version(struct ufs_hba *hba) { - struct ufs_qcom_host *host = ufshcd_get_variant(hba); - - if (host->hw_ver.major == 0x1) - return ufshci_version(1, 1); - else - return ufshci_version(2, 0); + return ufshci_version(2, 0); } /** @@ -1026,46 +846,69 @@ static void ufs_qcom_advertise_quirks(struct ufs_hba *hba) { struct ufs_qcom_host *host = ufshcd_get_variant(hba); - if (host->hw_ver.major == 0x01) { - hba->quirks |= UFSHCD_QUIRK_DELAY_BEFORE_DME_CMDS - | UFSHCD_QUIRK_BROKEN_PA_RXHSUNTERMCAP - | UFSHCD_QUIRK_DME_PEER_ACCESS_AUTO_MODE; + if (host->hw_ver.major == 0x2) + hba->quirks |= UFSHCD_QUIRK_BROKEN_UFS_HCI_VERSION; - if (host->hw_ver.minor == 0x0001 && host->hw_ver.step == 0x0001) - hba->quirks |= UFSHCD_QUIRK_BROKEN_INTR_AGGR; + if (host->hw_ver.major > 0x3) + hba->quirks |= UFSHCD_QUIRK_REINIT_AFTER_MAX_GEAR_SWITCH; +} - hba->quirks |= UFSHCD_QUIRK_BROKEN_LCC; - } +static void ufs_qcom_set_phy_gear(struct ufs_qcom_host *host) +{ + struct ufs_host_params *host_params = &host->host_params; + u32 val, dev_major; - if (host->hw_ver.major == 0x2) { - hba->quirks |= UFSHCD_QUIRK_BROKEN_UFS_HCI_VERSION; + host->phy_gear = host_params->hs_tx_gear; - if (!ufs_qcom_cap_qunipro(host)) - /* Legacy UniPro mode still need following quirks */ - hba->quirks |= (UFSHCD_QUIRK_DELAY_BEFORE_DME_CMDS - | UFSHCD_QUIRK_DME_PEER_ACCESS_AUTO_MODE - | UFSHCD_QUIRK_BROKEN_PA_RXHSUNTERMCAP); - } + if (host->hw_ver.major < 0x4) { + /* + * For controllers whose major HW version is < 4, power up the + * PHY using minimum supported gear (UFS_HS_G2). Switching to + * max gear will be performed during reinit if supported. + * For newer controllers, whose major HW version is >= 4, power + * up the PHY using max supported gear. + */ + host->phy_gear = UFS_HS_G2; + } else if (host->hw_ver.major >= 0x5) { + val = ufshcd_readl(host->hba, REG_UFS_DEBUG_SPARE_CFG); + dev_major = FIELD_GET(UFS_DEV_VER_MAJOR_MASK, val); - if (host->hw_ver.major > 0x3) - hba->quirks |= UFSHCD_QUIRK_REINIT_AFTER_MAX_GEAR_SWITCH; + /* + * Since the UFS device version is populated, let's remove the + * REINIT quirk as the negotiated gear won't change during boot. + * So there is no need to do reinit. + */ + if (dev_major != 0x0) + host->hba->quirks &= ~UFSHCD_QUIRK_REINIT_AFTER_MAX_GEAR_SWITCH; + + /* + * For UFS 3.1 device and older, power up the PHY using HS-G4 + * PHY gear to save power. + */ + if (dev_major > 0x0 && dev_major < 0x4) + host->phy_gear = UFS_HS_G4; + } } -static void ufs_qcom_set_caps(struct ufs_hba *hba) +static void ufs_qcom_set_host_params(struct ufs_hba *hba) { struct ufs_qcom_host *host = ufshcd_get_variant(hba); + struct ufs_host_params *host_params = &host->host_params; + + ufshcd_init_host_params(host_params); + + /* This driver only supports symmetic gear setting i.e., hs_tx_gear == hs_rx_gear */ + host_params->hs_tx_gear = host_params->hs_rx_gear = ufs_qcom_get_hs_gear(hba); +} +static void ufs_qcom_set_caps(struct ufs_hba *hba) +{ hba->caps |= UFSHCD_CAP_CLK_GATING | UFSHCD_CAP_HIBERN8_WITH_CLK_GATING; hba->caps |= UFSHCD_CAP_CLK_SCALING | UFSHCD_CAP_WB_WITH_CLK_SCALING; hba->caps |= UFSHCD_CAP_AUTO_BKOPS_SUSPEND; hba->caps |= UFSHCD_CAP_WB_EN; hba->caps |= UFSHCD_CAP_AGGR_POWER_COLLAPSE; hba->caps |= UFSHCD_CAP_RPM_AUTOSUSPEND; - - if (host->hw_ver.major >= 0x2) { - host->caps = UFS_QCOM_CAP_QUNIPRO | - UFS_QCOM_CAP_RETAIN_SEC_CFG_AFTER_PWR_COLLAPSE; - } } /** @@ -1188,16 +1031,12 @@ static int ufs_qcom_init(struct ufs_hba *hba) { int err; struct device *dev = hba->dev; - struct platform_device *pdev = to_platform_device(dev); struct ufs_qcom_host *host; - struct resource *res; struct ufs_clk_info *clki; host = devm_kzalloc(dev, sizeof(*host), GFP_KERNEL); - if (!host) { - dev_err(dev, "%s: no memory for qcom ufs host\n", __func__); + if (!host) return -ENOMEM; - } /* Make a two way bind between the qcom host and the hba */ host->hba = hba; @@ -1235,34 +1074,16 @@ static int ufs_qcom_init(struct ufs_hba *hba) host->device_reset = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_HIGH); if (IS_ERR(host->device_reset)) { - err = PTR_ERR(host->device_reset); - if (err != -EPROBE_DEFER) - dev_err(dev, "failed to acquire reset gpio: %d\n", err); + err = dev_err_probe(dev, PTR_ERR(host->device_reset), + "Failed to acquire device reset gpio\n"); goto out_variant_clear; } ufs_qcom_get_controller_revision(hba, &host->hw_ver.major, &host->hw_ver.minor, &host->hw_ver.step); - /* - * for newer controllers, device reference clock control bit has - * moved inside UFS controller register address space itself. - */ - if (host->hw_ver.major >= 0x02) { - host->dev_ref_clk_ctrl_mmio = hba->mmio_base + REG_UFS_CFG1; - host->dev_ref_clk_en_mask = BIT(26); - } else { - /* "dev_ref_clk_ctrl_mem" is optional resource */ - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, - "dev_ref_clk_ctrl_mem"); - if (res) { - host->dev_ref_clk_ctrl_mmio = - devm_ioremap_resource(dev, res); - if (IS_ERR(host->dev_ref_clk_ctrl_mmio)) - host->dev_ref_clk_ctrl_mmio = NULL; - host->dev_ref_clk_en_mask = BIT(5); - } - } + host->dev_ref_clk_ctrl_mmio = hba->mmio_base + REG_UFS_CFG1; + host->dev_ref_clk_en_mask = BIT(26); list_for_each_entry(clki, &hba->clk_list_head, list) { if (!strcmp(clki->name, "core_clk_unipro")) @@ -1275,6 +1096,8 @@ static int ufs_qcom_init(struct ufs_hba *hba) ufs_qcom_set_caps(hba); ufs_qcom_advertise_quirks(hba); + ufs_qcom_set_host_params(hba); + ufs_qcom_set_phy_gear(host); err = ufs_qcom_ice_init(host); if (err) @@ -1282,9 +1105,6 @@ static int ufs_qcom_init(struct ufs_hba *hba) ufs_qcom_setup_clocks(hba, true, POST_CHANGE); - if (hba->dev->id < MAX_UFS_QCOM_HOSTS) - ufs_qcom_hosts[hba->dev->id] = host; - ufs_qcom_get_default_testbus_cfg(host); err = ufs_qcom_testbus_config(host); if (err) @@ -1292,12 +1112,6 @@ static int ufs_qcom_init(struct ufs_hba *hba) dev_warn(dev, "%s: failed to configure the testbus %d\n", __func__, err); - /* - * Power up the PHY using the minimum supported gear (UFS_HS_G2). - * Switching to max gear will be performed during reinit if supported. - */ - host->phy_gear = UFS_HS_G2; - return 0; out_variant_clear: @@ -1391,7 +1205,7 @@ static int ufs_qcom_set_core_clk_ctrl(struct ufs_hba *hba, bool is_scale_up) struct ufs_qcom_host *host = ufshcd_get_variant(hba); struct list_head *head = &hba->clk_list_head; struct ufs_clk_info *clki; - u32 cycles_in_1us; + u32 cycles_in_1us = 0; u32 core_clk_ctrl_reg; int err; @@ -1446,9 +1260,6 @@ static int ufs_qcom_clk_scale_up_pre_change(struct ufs_hba *hba) struct ufs_pa_layer_attr *attr = &host->dev_req_params; int ret; - if (!ufs_qcom_cap_qunipro(host)) - return 0; - ret = ufs_qcom_cfg_timers(hba, attr->gear_rx, attr->pwr_rx, attr->hs_rate, false, true); if (ret) { @@ -1466,13 +1277,9 @@ static int ufs_qcom_clk_scale_up_post_change(struct ufs_hba *hba) static int ufs_qcom_clk_scale_down_pre_change(struct ufs_hba *hba) { - struct ufs_qcom_host *host = ufshcd_get_variant(hba); int err; u32 core_clk_ctrl_reg; - if (!ufs_qcom_cap_qunipro(host)) - return 0; - err = ufshcd_dme_get(hba, UIC_ARG_MIB(DME_VS_CORE_CLK_CTRL), &core_clk_ctrl_reg); @@ -1491,11 +1298,6 @@ static int ufs_qcom_clk_scale_down_pre_change(struct ufs_hba *hba) static int ufs_qcom_clk_scale_down_post_change(struct ufs_hba *hba) { - struct ufs_qcom_host *host = ufshcd_get_variant(hba); - - if (!ufs_qcom_cap_qunipro(host)) - return 0; - /* set unipro core clock attributes and clear clock divider */ return ufs_qcom_set_core_clk_ctrl(hba, false); } @@ -1504,7 +1306,7 @@ static int ufs_qcom_clk_scale_notify(struct ufs_hba *hba, bool scale_up, enum ufs_notify_change_status status) { struct ufs_qcom_host *host = ufshcd_get_variant(hba); - int err = 0; + int err; /* check the host controller state before sending hibern8 cmd */ if (!ufshcd_is_hba_active(hba)) @@ -1777,7 +1579,7 @@ static int ufs_qcom_mcq_config_resource(struct ufs_hba *hba) struct platform_device *pdev = to_platform_device(hba->dev); struct ufshcd_res_info *res; struct resource *res_mem, *res_mcq; - int i, ret = 0; + int i, ret; memcpy(hba->res, ufs_res_info, sizeof(ufs_res_info)); @@ -1931,7 +1733,7 @@ static int ufs_qcom_config_esi(struct ufs_hba *hba) ufs_qcom_write_msi_msg); if (ret) { dev_err(hba->dev, "Failed to request Platform MSI %d\n", ret); - goto out; + return ret; } msi_lock_descs(hba->dev); @@ -1960,17 +1762,13 @@ static int ufs_qcom_config_esi(struct ufs_hba *hba) platform_msi_domain_free_irqs(hba->dev); } else { if (host->hw_ver.major == 6 && host->hw_ver.minor == 0 && - host->hw_ver.step == 0) { - ufshcd_writel(hba, - ufshcd_readl(hba, REG_UFS_CFG3) | 0x1F000, - REG_UFS_CFG3); - } + host->hw_ver.step == 0) + ufshcd_rmwl(hba, ESI_VEC_MASK, + FIELD_PREP(ESI_VEC_MASK, MAX_ESI_VEC - 1), + REG_UFS_CFG3); ufshcd_mcq_enable_esi(hba); - } - -out: - if (!ret) host->esi_enabled = true; + } return ret; } diff --git a/drivers/ufs/host/ufs-qcom.h b/drivers/ufs/host/ufs-qcom.h index 9950a00894..9dd9a391eb 100644 --- a/drivers/ufs/host/ufs-qcom.h +++ b/drivers/ufs/host/ufs-qcom.h @@ -10,22 +10,17 @@ #include <soc/qcom/ice.h> #include <ufs/ufshcd.h> -#define MAX_UFS_QCOM_HOSTS 1 -#define MAX_U32 (~(u32)0) #define MPHY_TX_FSM_STATE 0x41 #define TX_FSM_HIBERN8 0x1 #define HBRN8_POLL_TOUT_MS 100 #define DEFAULT_CLK_RATE_HZ 1000000 -#define BUS_VECTOR_NAME_LEN 32 #define MAX_SUPP_MAC 64 +#define MAX_ESI_VEC 32 #define UFS_HW_VER_MAJOR_MASK GENMASK(31, 28) #define UFS_HW_VER_MINOR_MASK GENMASK(27, 16) #define UFS_HW_VER_STEP_MASK GENMASK(15, 0) - -/* vendor specific pre-defined parameters */ -#define SLOW 1 -#define FAST 2 +#define UFS_DEV_VER_MAJOR_MASK GENMASK(7, 4) #define UFS_QCOM_LIMIT_HS_RATE PA_HS_MODE_B @@ -56,6 +51,8 @@ enum { UFS_AH8_CFG = 0xFC, REG_UFS_CFG3 = 0x271C, + + REG_UFS_DEBUG_SPARE_CFG = 0x284C, }; /* QCOM UFS host controller vendor specific debug registers */ @@ -93,9 +90,6 @@ enum { #define TEST_BUS_SEL GENMASK(22, 19) #define UFS_REG_TEST_BUS_EN BIT(30) -#define UFS_PHY_RESET_ENABLE 1 -#define UFS_PHY_RESET_DISABLE 0 - /* bit definitions for REG_UFS_CFG2 register */ #define UAWM_HW_CGC_EN BIT(0) #define UARM_HW_CGC_EN BIT(1) @@ -106,6 +100,9 @@ enum { #define TMRLUT_HW_CGC_EN BIT(6) #define OCSC_HW_CGC_EN BIT(7) +/* bit definitions for REG_UFS_CFG3 register */ +#define ESI_VEC_MASK GENMASK(22, 12) + /* bit definitions for REG_UFS_PARAM0 */ #define MAX_HS_GEAR_MASK GENMASK(6, 4) #define UFS_QCOM_MAX_GEAR(x) FIELD_GET(MAX_HS_GEAR_MASK, (x)) @@ -118,13 +115,6 @@ enum { DFC_HW_CGC_EN | TRLUT_HW_CGC_EN |\ TMRLUT_HW_CGC_EN | OCSC_HW_CGC_EN) -/* bit offset */ -#define OFFSET_CLK_NS_REG 0xa - -/* bit masks */ -#define MASK_TX_SYMBOL_CLK_1US_REG GENMASK(9, 0) -#define MASK_CLK_NS_REG GENMASK(23, 10) - /* QUniPro Vendor specific attributes */ #define PA_VS_CONFIG_REG1 0x9000 #define DME_VS_CORE_CLK_CTRL 0xD002 @@ -158,8 +148,7 @@ ufs_qcom_get_controller_revision(struct ufs_hba *hba, static inline void ufs_qcom_assert_reset(struct ufs_hba *hba) { - ufshcd_rmwl(hba, UFS_PHY_SOFT_RESET, FIELD_PREP(UFS_PHY_SOFT_RESET, UFS_PHY_RESET_ENABLE), - REG_UFS_CFG1); + ufshcd_rmwl(hba, UFS_PHY_SOFT_RESET, UFS_PHY_SOFT_RESET, REG_UFS_CFG1); /* * Make sure assertion of ufs phy reset is written to @@ -170,8 +159,7 @@ static inline void ufs_qcom_assert_reset(struct ufs_hba *hba) static inline void ufs_qcom_deassert_reset(struct ufs_hba *hba) { - ufshcd_rmwl(hba, UFS_PHY_SOFT_RESET, FIELD_PREP(UFS_PHY_SOFT_RESET, UFS_PHY_RESET_DISABLE), - REG_UFS_CFG1); + ufshcd_rmwl(hba, UFS_PHY_SOFT_RESET, 0, REG_UFS_CFG1); /* * Make sure de-assertion of ufs phy reset is written to @@ -195,28 +183,11 @@ struct ufs_qcom_testbus { struct gpio_desc; struct ufs_qcom_host { - /* - * Set this capability if host controller supports the QUniPro mode - * and if driver wants the Host controller to operate in QUniPro mode. - * Note: By default this capability will be kept enabled if host - * controller supports the QUniPro mode. - */ - #define UFS_QCOM_CAP_QUNIPRO 0x1 - - /* - * Set this capability if host controller can retain the secure - * configuration even after UFS controller core power collapse. - */ - #define UFS_QCOM_CAP_RETAIN_SEC_CFG_AFTER_PWR_COLLAPSE 0x2 - u32 caps; - struct phy *generic_phy; struct ufs_hba *hba; struct ufs_pa_layer_attr dev_req_params; - struct clk *rx_l0_sync_clk; - struct clk *tx_l0_sync_clk; - struct clk *rx_l1_sync_clk; - struct clk *tx_l1_sync_clk; + struct clk_bulk_data *clks; + u32 num_clks; bool is_lane_clks_enabled; struct icc_path *icc_ddr; @@ -240,6 +211,7 @@ struct ufs_qcom_host { struct gpio_desc *device_reset; + struct ufs_host_params host_params; u32 phy_gear; bool esi_enabled; @@ -261,9 +233,4 @@ ufs_qcom_get_debug_reg_offset(struct ufs_qcom_host *host, u32 reg) int ufs_qcom_testbus_config(struct ufs_qcom_host *host); -static inline bool ufs_qcom_cap_qunipro(struct ufs_qcom_host *host) -{ - return host->caps & UFS_QCOM_CAP_QUNIPRO; -} - #endif /* UFS_QCOM_H_ */ diff --git a/drivers/ufs/host/ufshcd-pltfrm.c b/drivers/ufs/host/ufshcd-pltfrm.c index db9d9365ff..a3e69ecafd 100644 --- a/drivers/ufs/host/ufshcd-pltfrm.c +++ b/drivers/ufs/host/ufshcd-pltfrm.c @@ -339,61 +339,60 @@ static int ufshcd_parse_operating_points(struct ufs_hba *hba) } /** - * ufshcd_get_pwr_dev_param - get finally agreed attributes for - * power mode change - * @pltfrm_param: pointer to platform parameters + * ufshcd_negotiate_pwr_params - find power mode settings that are supported by + * both the controller and the device + * @host_params: pointer to host parameters * @dev_max: pointer to device attributes * @agreed_pwr: returned agreed attributes * * Return: 0 on success, non-zero value on failure. */ -int ufshcd_get_pwr_dev_param(const struct ufs_dev_params *pltfrm_param, - const struct ufs_pa_layer_attr *dev_max, - struct ufs_pa_layer_attr *agreed_pwr) +int ufshcd_negotiate_pwr_params(const struct ufs_host_params *host_params, + const struct ufs_pa_layer_attr *dev_max, + struct ufs_pa_layer_attr *agreed_pwr) { - int min_pltfrm_gear; + int min_host_gear; int min_dev_gear; bool is_dev_sup_hs = false; - bool is_pltfrm_max_hs = false; + bool is_host_max_hs = false; if (dev_max->pwr_rx == FAST_MODE) is_dev_sup_hs = true; - if (pltfrm_param->desired_working_mode == UFS_HS_MODE) { - is_pltfrm_max_hs = true; - min_pltfrm_gear = min_t(u32, pltfrm_param->hs_rx_gear, - pltfrm_param->hs_tx_gear); + if (host_params->desired_working_mode == UFS_HS_MODE) { + is_host_max_hs = true; + min_host_gear = min_t(u32, host_params->hs_rx_gear, + host_params->hs_tx_gear); } else { - min_pltfrm_gear = min_t(u32, pltfrm_param->pwm_rx_gear, - pltfrm_param->pwm_tx_gear); + min_host_gear = min_t(u32, host_params->pwm_rx_gear, + host_params->pwm_tx_gear); } /* - * device doesn't support HS but - * pltfrm_param->desired_working_mode is HS, - * thus device and pltfrm_param don't agree + * device doesn't support HS but host_params->desired_working_mode is HS, + * thus device and host_params don't agree */ - if (!is_dev_sup_hs && is_pltfrm_max_hs) { + if (!is_dev_sup_hs && is_host_max_hs) { pr_info("%s: device doesn't support HS\n", __func__); return -ENOTSUPP; - } else if (is_dev_sup_hs && is_pltfrm_max_hs) { + } else if (is_dev_sup_hs && is_host_max_hs) { /* * since device supports HS, it supports FAST_MODE. - * since pltfrm_param->desired_working_mode is also HS + * since host_params->desired_working_mode is also HS * then final decision (FAST/FASTAUTO) is done according * to pltfrm_params as it is the restricting factor */ - agreed_pwr->pwr_rx = pltfrm_param->rx_pwr_hs; + agreed_pwr->pwr_rx = host_params->rx_pwr_hs; agreed_pwr->pwr_tx = agreed_pwr->pwr_rx; } else { /* - * here pltfrm_param->desired_working_mode is PWM. + * here host_params->desired_working_mode is PWM. * it doesn't matter whether device supports HS or PWM, - * in both cases pltfrm_param->desired_working_mode will + * in both cases host_params->desired_working_mode will * determine the mode */ - agreed_pwr->pwr_rx = pltfrm_param->rx_pwr_pwm; + agreed_pwr->pwr_rx = host_params->rx_pwr_pwm; agreed_pwr->pwr_tx = agreed_pwr->pwr_rx; } @@ -403,9 +402,9 @@ int ufshcd_get_pwr_dev_param(const struct ufs_dev_params *pltfrm_param, * the same decision will be made for rx */ agreed_pwr->lane_tx = min_t(u32, dev_max->lane_tx, - pltfrm_param->tx_lanes); + host_params->tx_lanes); agreed_pwr->lane_rx = min_t(u32, dev_max->lane_rx, - pltfrm_param->rx_lanes); + host_params->rx_lanes); /* device maximum gear is the minimum between device rx and tx gears */ min_dev_gear = min_t(u32, dev_max->gear_rx, dev_max->gear_tx); @@ -418,26 +417,26 @@ int ufshcd_get_pwr_dev_param(const struct ufs_dev_params *pltfrm_param, * what is the gear, as it is the one that also decided previously what * pwr the device will be configured to. */ - if ((is_dev_sup_hs && is_pltfrm_max_hs) || - (!is_dev_sup_hs && !is_pltfrm_max_hs)) { + if ((is_dev_sup_hs && is_host_max_hs) || + (!is_dev_sup_hs && !is_host_max_hs)) { agreed_pwr->gear_rx = - min_t(u32, min_dev_gear, min_pltfrm_gear); + min_t(u32, min_dev_gear, min_host_gear); } else if (!is_dev_sup_hs) { agreed_pwr->gear_rx = min_dev_gear; } else { - agreed_pwr->gear_rx = min_pltfrm_gear; + agreed_pwr->gear_rx = min_host_gear; } agreed_pwr->gear_tx = agreed_pwr->gear_rx; - agreed_pwr->hs_rate = pltfrm_param->hs_rate; + agreed_pwr->hs_rate = host_params->hs_rate; return 0; } -EXPORT_SYMBOL_GPL(ufshcd_get_pwr_dev_param); +EXPORT_SYMBOL_GPL(ufshcd_negotiate_pwr_params); -void ufshcd_init_pwr_dev_param(struct ufs_dev_params *dev_param) +void ufshcd_init_host_params(struct ufs_host_params *host_params) { - *dev_param = (struct ufs_dev_params){ + *host_params = (struct ufs_host_params){ .tx_lanes = UFS_LANE_2, .rx_lanes = UFS_LANE_2, .hs_rx_gear = UFS_HS_G3, @@ -452,7 +451,7 @@ void ufshcd_init_pwr_dev_param(struct ufs_dev_params *dev_param) .desired_working_mode = UFS_HS_MODE, }; } -EXPORT_SYMBOL_GPL(ufshcd_init_pwr_dev_param); +EXPORT_SYMBOL_GPL(ufshcd_init_host_params); /** * ufshcd_pltfrm_init - probe routine of the driver diff --git a/drivers/ufs/host/ufshcd-pltfrm.h b/drivers/ufs/host/ufshcd-pltfrm.h index a86a3ada4b..df387be521 100644 --- a/drivers/ufs/host/ufshcd-pltfrm.h +++ b/drivers/ufs/host/ufshcd-pltfrm.h @@ -10,7 +10,7 @@ #define UFS_PWM_MODE 1 #define UFS_HS_MODE 2 -struct ufs_dev_params { +struct ufs_host_params { u32 pwm_rx_gear; /* pwm rx gear to work in */ u32 pwm_tx_gear; /* pwm tx gear to work in */ u32 hs_rx_gear; /* hs rx gear to work in */ @@ -25,10 +25,10 @@ struct ufs_dev_params { u32 desired_working_mode; }; -int ufshcd_get_pwr_dev_param(const struct ufs_dev_params *dev_param, - const struct ufs_pa_layer_attr *dev_max, - struct ufs_pa_layer_attr *agreed_pwr); -void ufshcd_init_pwr_dev_param(struct ufs_dev_params *dev_param); +int ufshcd_negotiate_pwr_params(const struct ufs_host_params *host_params, + const struct ufs_pa_layer_attr *dev_max, + struct ufs_pa_layer_attr *agreed_pwr); +void ufshcd_init_host_params(struct ufs_host_params *host_params); int ufshcd_pltfrm_init(struct platform_device *pdev, const struct ufs_hba_variant_ops *vops); int ufshcd_populate_vreg(struct device *dev, const char *name, |