diff options
Diffstat (limited to 'drivers/clk/clk-renesas-pcie.c')
| -rw-r--r-- | drivers/clk/clk-renesas-pcie.c | 37 |
1 files changed, 20 insertions, 17 deletions
diff --git a/drivers/clk/clk-renesas-pcie.c b/drivers/clk/clk-renesas-pcie.c index 6606aba253..53e21ac302 100644 --- a/drivers/clk/clk-renesas-pcie.c +++ b/drivers/clk/clk-renesas-pcie.c @@ -7,6 +7,7 @@ * Currently supported: * - 9FGV0241 * - 9FGV0441 + * - 9FGV0841 * * Copyright (C) 2022 Marek Vasut <marex@denx.de> */ @@ -42,6 +43,7 @@ #define RS9_REG_DID 0x6 #define RS9_REG_BCP 0x7 +#define RS9_REG_VID_MASK GENMASK(3, 0) #define RS9_REG_VID_IDT 0x01 #define RS9_REG_DID_TYPE_FGV (0x0 << RS9_REG_DID_TYPE_SHIFT) @@ -49,16 +51,10 @@ #define RS9_REG_DID_TYPE_DMV (0x2 << RS9_REG_DID_TYPE_SHIFT) #define RS9_REG_DID_TYPE_SHIFT 0x6 -/* Supported Renesas 9-series models. */ -enum rs9_model { - RENESAS_9FGV0241, - RENESAS_9FGV0441, -}; - /* Structure to describe features of a particular 9-series model */ struct rs9_chip_info { - const enum rs9_model model; unsigned int num_clks; + u8 outshift; u8 did; }; @@ -160,14 +156,12 @@ static const struct regmap_config rs9_regmap_config = { static u8 rs9_calc_dif(const struct rs9_driver_data *rs9, int idx) { - enum rs9_model model = rs9->chip_info->model; - - if (model == RENESAS_9FGV0241) - return BIT(idx + 1); - else if (model == RENESAS_9FGV0441) - return BIT(idx); - - return 0; + /* + * On 9FGV0241, the DIF OE0 is BIT(1) and DIF OE(1) is BIT(2), + * on 9FGV0441 and 9FGV0841 the DIF OE0 is BIT(0) and so on. + * Increment the index in the 9FGV0241 special case here. + */ + return BIT(idx + rs9->chip_info->outshift); } static int rs9_get_output_config(struct rs9_driver_data *rs9, int idx) @@ -333,6 +327,7 @@ static int rs9_probe(struct i2c_client *client) if (ret < 0) return ret; + vid &= RS9_REG_VID_MASK; if (vid != RS9_REG_VID_IDT || did != rs9->chip_info->did) return dev_err_probe(&client->dev, -ENODEV, "Incorrect VID/DID: %#02x, %#02x. Expected %#02x, %#02x\n", @@ -380,20 +375,27 @@ static int __maybe_unused rs9_resume(struct device *dev) } static const struct rs9_chip_info renesas_9fgv0241_info = { - .model = RENESAS_9FGV0241, .num_clks = 2, + .outshift = 1, .did = RS9_REG_DID_TYPE_FGV | 0x02, }; static const struct rs9_chip_info renesas_9fgv0441_info = { - .model = RENESAS_9FGV0441, .num_clks = 4, + .outshift = 0, .did = RS9_REG_DID_TYPE_FGV | 0x04, }; +static const struct rs9_chip_info renesas_9fgv0841_info = { + .num_clks = 8, + .outshift = 0, + .did = RS9_REG_DID_TYPE_FGV | 0x08, +}; + static const struct i2c_device_id rs9_id[] = { { "9fgv0241", .driver_data = (kernel_ulong_t)&renesas_9fgv0241_info }, { "9fgv0441", .driver_data = (kernel_ulong_t)&renesas_9fgv0441_info }, + { "9fgv0841", .driver_data = (kernel_ulong_t)&renesas_9fgv0841_info }, { } }; MODULE_DEVICE_TABLE(i2c, rs9_id); @@ -401,6 +403,7 @@ MODULE_DEVICE_TABLE(i2c, rs9_id); static const struct of_device_id clk_rs9_of_match[] = { { .compatible = "renesas,9fgv0241", .data = &renesas_9fgv0241_info }, { .compatible = "renesas,9fgv0441", .data = &renesas_9fgv0441_info }, + { .compatible = "renesas,9fgv0841", .data = &renesas_9fgv0841_info }, { } }; MODULE_DEVICE_TABLE(of, clk_rs9_of_match); |