[PATCH] spi: rockchip-sfc: Support ACPI

[PATCH] spi: rockchip-sfc: Support ACPI

[Jon Lin]

Compatible with ACPI.

Signed-off-by: Jon Lin <jon.lin@rock-chips.com>
---

 drivers/spi/spi-rockchip-sfc.c | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/drivers/spi/spi-rockchip-sfc.c b/drivers/spi/spi-rockchip-sfc.c
index 69d0f2175568..138508d2c736 100644
--- a/drivers/spi/spi-rockchip-sfc.c
+++ b/drivers/spi/spi-rockchip-sfc.c
@@ -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);
 
-	sfc->clk = devm_clk_get(&pdev->dev, "clk_sfc");
+	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");
 
-	sfc->hclk = devm_clk_get(&pdev->dev, "hclk_sfc");
+	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) {
-- 
2.34.1

Re: [PATCH] spi: rockchip-sfc: Support ACPI

[Mark Brown]

On Wed, 20 Nov 2024 09:22:08 +0800, Jon Lin wrote:
> Compatible with ACPI.
> 
> 

Applied to

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git for-next

Thanks!

[1/1] spi: rockchip-sfc: Support ACPI
      commit: e39531352aed30156b270a61ba075e5b8d3b8498

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark