diff options
author | Marek Vasut <marek.vasut+renesas@mailbox.org> | 2023-11-14 01:18:53 +0300 |
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committer | Stephen Boyd <sboyd@kernel.org> | 2023-12-18 02:26:24 +0300 |
commit | cd9a5c97dfdaeb9c8ac02e14d7ccbd445e8b5265 (patch) | |
tree | 90c2f45bca0ddfdbe043c25b8f3237aac2e67ac1 /drivers/clk/clk-renesas-pcie.c | |
parent | 780da7f11a81aab64b90c2c978e2a574c0a59c83 (diff) | |
download | linux-cd9a5c97dfdaeb9c8ac02e14d7ccbd445e8b5265.tar.xz |
clk: rs9: Replace model check with bitshift from chip data
Adjust rs9_calc_dif() to special-case the 9FGV0241 where DIFx bits
start at 1, encode this shift into chip data and drop the model
check entirely.
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Link: https://lore.kernel.org/r/20231113221949.111964-3-marek.vasut+renesas@mailbox.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Diffstat (limited to 'drivers/clk/clk-renesas-pcie.c')
-rw-r--r-- | drivers/clk/clk-renesas-pcie.c | 26 |
1 files changed, 9 insertions, 17 deletions
diff --git a/drivers/clk/clk-renesas-pcie.c b/drivers/clk/clk-renesas-pcie.c index 9b985127b3cb..e86c2911ceb4 100644 --- a/drivers/clk/clk-renesas-pcie.c +++ b/drivers/clk/clk-renesas-pcie.c @@ -50,16 +50,10 @@ #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; }; @@ -161,14 +155,12 @@ 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) @@ -382,14 +374,14 @@ 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, }; |