6.6-stable review patch. If anyone has any objections, please let me know.
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From: Wolfram Sang wsa+renesas@sang-engineering.com
[ Upstream commit e5c7bcb499840551cfbe85c6df177ebc50432bf0 ]
Documentation says only DTDL of 200 is allowed for this SoC.
Fixes: 4286db8456f4 ("spi: sh-msiof: Add R-Car Gen 2 and 3 fallback bindings") Signed-off-by: Wolfram Sang wsa+renesas@sang-engineering.com Reviewed-by: Geert Uytterhoeven geert+renesas@glider.be Reviewed-by: Yoshihiro Shimoda yoshihiro.shimoda.uh@renesas.com Link: https://msgid.link/r/20231212081239.14254-1-wsa+renesas@sang-engineering.com Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/spi/spi-sh-msiof.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+)
diff --git a/drivers/spi/spi-sh-msiof.c b/drivers/spi/spi-sh-msiof.c index fb452bc78372..cfc3b1ddbd22 100644 --- a/drivers/spi/spi-sh-msiof.c +++ b/drivers/spi/spi-sh-msiof.c @@ -29,12 +29,15 @@
#include <asm/unaligned.h>
+#define SH_MSIOF_FLAG_FIXED_DTDL_200 BIT(0) + struct sh_msiof_chipdata { u32 bits_per_word_mask; u16 tx_fifo_size; u16 rx_fifo_size; u16 ctlr_flags; u16 min_div_pow; + u32 flags; };
struct sh_msiof_spi_priv { @@ -1072,6 +1075,16 @@ static const struct sh_msiof_chipdata rcar_gen3_data = { .min_div_pow = 1, };
+static const struct sh_msiof_chipdata rcar_r8a7795_data = { + .bits_per_word_mask = SPI_BPW_MASK(8) | SPI_BPW_MASK(16) | + SPI_BPW_MASK(24) | SPI_BPW_MASK(32), + .tx_fifo_size = 64, + .rx_fifo_size = 64, + .ctlr_flags = SPI_CONTROLLER_MUST_TX, + .min_div_pow = 1, + .flags = SH_MSIOF_FLAG_FIXED_DTDL_200, +}; + static const struct of_device_id sh_msiof_match[] __maybe_unused = { { .compatible = "renesas,sh-mobile-msiof", .data = &sh_data }, { .compatible = "renesas,msiof-r8a7743", .data = &rcar_gen2_data }, @@ -1082,6 +1095,7 @@ static const struct of_device_id sh_msiof_match[] __maybe_unused = { { .compatible = "renesas,msiof-r8a7793", .data = &rcar_gen2_data }, { .compatible = "renesas,msiof-r8a7794", .data = &rcar_gen2_data }, { .compatible = "renesas,rcar-gen2-msiof", .data = &rcar_gen2_data }, + { .compatible = "renesas,msiof-r8a7795", .data = &rcar_r8a7795_data }, { .compatible = "renesas,msiof-r8a7796", .data = &rcar_gen3_data }, { .compatible = "renesas,rcar-gen3-msiof", .data = &rcar_gen3_data }, { .compatible = "renesas,rcar-gen4-msiof", .data = &rcar_gen3_data }, @@ -1279,6 +1293,9 @@ static int sh_msiof_spi_probe(struct platform_device *pdev) return -ENXIO; }
+ if (chipdata->flags & SH_MSIOF_FLAG_FIXED_DTDL_200) + info->dtdl = 200; + if (info->mode == MSIOF_SPI_TARGET) ctlr = spi_alloc_target(&pdev->dev, sizeof(struct sh_msiof_spi_priv));