diff options
Diffstat (limited to 'drivers/clk/clk-renesas-pcie.c')
| -rw-r--r-- | drivers/clk/clk-renesas-pcie.c | 55 |
1 files changed, 30 insertions, 25 deletions
diff --git a/drivers/clk/clk-renesas-pcie.c b/drivers/clk/clk-renesas-pcie.c index 10d31c222a1c..4c3a5e4eb77a 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> */ @@ -24,10 +25,12 @@ #define RS9_REG_SS_AMP_0V7 0x1 #define RS9_REG_SS_AMP_0V8 0x2 #define RS9_REG_SS_AMP_0V9 0x3 +#define RS9_REG_SS_AMP_DEFAULT RS9_REG_SS_AMP_0V8 #define RS9_REG_SS_AMP_MASK 0x3 #define RS9_REG_SS_SSC_100 0 #define RS9_REG_SS_SSC_M025 (1 << 3) #define RS9_REG_SS_SSC_M050 (3 << 3) +#define RS9_REG_SS_SSC_DEFAULT RS9_REG_SS_SSC_100 #define RS9_REG_SS_SSC_MASK (3 << 3) #define RS9_REG_SS_SSC_LOCK BIT(5) #define RS9_REG_SR 0x2 @@ -42,6 +45,7 @@ #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 +53,10 @@ #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 +158,12 @@ 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) @@ -211,8 +207,8 @@ static int rs9_get_common_config(struct rs9_driver_data *rs9) int ret; /* Set defaults */ - rs9->pll_amplitude = RS9_REG_SS_AMP_0V7; - rs9->pll_ssc = RS9_REG_SS_SSC_100; + rs9->pll_amplitude = RS9_REG_SS_AMP_DEFAULT; + rs9->pll_ssc = RS9_REG_SS_SSC_DEFAULT; /* Output clock amplitude */ ret = of_property_read_u32(np, "renesas,out-amplitude-microvolt", @@ -253,13 +249,13 @@ static void rs9_update_config(struct rs9_driver_data *rs9) int i; /* If amplitude is non-default, update it. */ - if (rs9->pll_amplitude != RS9_REG_SS_AMP_0V7) { + if (rs9->pll_amplitude != RS9_REG_SS_AMP_DEFAULT) { regmap_update_bits(rs9->regmap, RS9_REG_SS, RS9_REG_SS_AMP_MASK, rs9->pll_amplitude); } /* If SSC is non-default, update it. */ - if (rs9->pll_ssc != RS9_REG_SS_SSC_100) { + if (rs9->pll_ssc != RS9_REG_SS_SSC_DEFAULT) { regmap_update_bits(rs9->regmap, RS9_REG_SS, RS9_REG_SS_SSC_MASK, rs9->pll_ssc); } @@ -298,7 +294,7 @@ static int rs9_probe(struct i2c_client *client) i2c_set_clientdata(client, rs9); rs9->client = client; - rs9->chip_info = device_get_match_data(&client->dev); + rs9->chip_info = i2c_get_match_data(client); if (!rs9->chip_info) return -EINVAL; @@ -333,6 +329,7 @@ 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 +377,27 @@ 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 = RENESAS_9FGV0241 }, - { "9fgv0441", .driver_data = RENESAS_9FGV0441 }, + { "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 +405,7 @@ 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); @@ -413,7 +418,7 @@ static struct i2c_driver rs9_driver = { .pm = &rs9_pm_ops, .of_match_table = clk_rs9_of_match, }, - .probe_new = rs9_probe, + .probe = rs9_probe, .id_table = rs9_id, }; module_i2c_driver(rs9_driver); |