| Message ID | 20220113121143.22280-19-alim.akhtar@samsung.com |
|---|---|
| State | Superseded |
| Headers | show |
| Series | Add support for Tesla Full Self-Driving (FSD) SoC | expand |
>-----Original Message----- >From: Mark Brown [mailto:broonie@kernel.org] >Sent: Thursday, January 13, 2022 6:29 PM >To: Alim Akhtar <alim.akhtar@samsung.com> >Cc: linux-arm-kernel@lists.infradead.org; linux-kernel@vger.kernel.org; >soc@kernel.org; linux-clk@vger.kernel.org; devicetree@vger.kernel.org; >olof@lixom.net; linus.walleij@linaro.org; catalin.marinas@arm.com; >robh+dt@kernel.org; krzysztof.kozlowski@canonical.com; >s.nawrocki@samsung.com; linux-samsung-soc@vger.kernel.org; >pankaj.dubey@samsung.com; linux-fsd@tesla.com; linux- >spi@vger.kernel.org; Aswani Reddy <aswani.reddy@samsung.com> >Subject: Re: [PATCH 18/23] spi: s3c64xx: Add spi port configuration for Tesla >FSD SoC > >On Thu, Jan 13, 2022 at 05:41:38PM +0530, Alim Akhtar wrote: > >> + { .compatible = "tesla,fsd-spi", >> + .data = (void *)&fsd_spi_port_config, >> + }, > >This needs a DT bindings update to match. Thanks for point it out, will update in v2.
On Thu, Jan 13, 2022 at 1:24 PM Alim Akhtar <alim.akhtar@samsung.com> wrote: > This patch adds compatible and port configuration for > spi controller for Tesla Full Self-Driving SoC. > > Cc: linux-fsd@tesla.com > Cc: broonie@kernel.org > Cc: linux-spi@vger.kernel.org > Signed-off-by: Aswani Reddy <aswani.reddy@samsung.com> > Signed-off-by: Alim Akhtar <alim.akhtar@samsung.com> Note to self: now that I see that the Samsung "S3C" SPI controller, which I was thinking of as "some kind of early 2000s legacy" is used by the very latest silicon I bumped up fixing it to use GPIO descriptors a bit on my TODO list. Yours, Linus Walleij
diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c index 8755cd85e83c..8d0c1f03ab7a 100644 --- a/drivers/spi/spi-s3c64xx.c +++ b/drivers/spi/spi-s3c64xx.c @@ -1442,6 +1442,16 @@ static const struct s3c64xx_spi_port_config exynos5433_spi_port_config = { .quirks = S3C64XX_SPI_QUIRK_CS_AUTO, }; +static struct s3c64xx_spi_port_config fsd_spi_port_config = { + .fifo_lvl_mask = { 0x7f, 0x7f, 0x7f, 0x7f, 0x7f}, + .rx_lvl_offset = 15, + .tx_st_done = 25, + .high_speed = true, + .clk_from_cmu = true, + .clk_ioclk = false, + .quirks = S3C64XX_SPI_QUIRK_CS_AUTO, +}; + static const struct platform_device_id s3c64xx_spi_driver_ids[] = { { .name = "s3c2443-spi", @@ -1472,6 +1482,9 @@ static const struct of_device_id s3c64xx_spi_dt_match[] = { { .compatible = "samsung,exynos5433-spi", .data = (void *)&exynos5433_spi_port_config, }, + { .compatible = "tesla,fsd-spi", + .data = (void *)&fsd_spi_port_config, + }, { }, }; MODULE_DEVICE_TABLE(of, s3c64xx_spi_dt_match);