Unverified Commit e3953135 authored by Jon Lin's avatar Jon Lin Committed by Mark Brown
Browse files

spi: rockchip-sfc: Support ACPI 



Compatible with ACPI.

Signed-off-by: default avatarJon Lin <jon.lin@rock-chips.com>
Link: https://patch.msgid.link/20241120012208.1193034-1-jon.lin@rock-chips.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 2c55f67c

drivers/spi/spi-rockchip-sfc.c

+11 −3
Original line number Diff line number Diff line
@@ -491,7 +491,7 @@ static int rockchip_sfc_exec_mem_op(struct spi_mem *mem, const struct spi_mem_op 
	u32 len = op->data.nbytes;

	int ret;



	if (unlikely(mem->spi->max_speed_hz != sfc->frequency)) {

	if (unlikely(mem->spi->max_speed_hz != sfc->frequency) && !has_acpi_companion(sfc->dev)) {

		ret = clk_set_rate(sfc->clk, mem->spi->max_speed_hz);

		if (ret)

			return ret;
@@ -579,16 +579,24 @@ static int rockchip_sfc_probe(struct platform_device *pdev) 
	if (IS_ERR(sfc->regbase))

		return PTR_ERR(sfc->regbase);



	if (!has_acpi_companion(&pdev->dev))

		sfc->clk = devm_clk_get(&pdev->dev, "clk_sfc");

	if (IS_ERR(sfc->clk))

		return dev_err_probe(&pdev->dev, PTR_ERR(sfc->clk),

				     "Failed to get sfc interface clk\n");



	if (!has_acpi_companion(&pdev->dev))

		sfc->hclk = devm_clk_get(&pdev->dev, "hclk_sfc");

	if (IS_ERR(sfc->hclk))

		return dev_err_probe(&pdev->dev, PTR_ERR(sfc->hclk),

				     "Failed to get sfc ahb clk\n");



	if (has_acpi_companion(&pdev->dev)) {

		ret = device_property_read_u32(&pdev->dev, "clock-frequency", &sfc->frequency);

		if (ret)

			return dev_err_probe(&pdev->dev, ret, "Failed to find clock-frequency\n");

	}



	sfc->use_dma = !of_property_read_bool(sfc->dev->of_node, "rockchip,sfc-no-dma");



	if (sfc->use_dma) {