diff options
| author |   Jon Lin <jon.lin@rock-chips.com> | 2024-11-20 09:22:08 +0800 |
|---|---|---|
| committer |   Mark Brown <broonie@kernel.org> | 2024-12-02 00:32:31 +0000 |
| commit | e39531352aed30156b270a61ba075e5b8d3b8498 (patch) | |
| tree | 6559cc25b8b3eaa3546d6982593d2302f2158369 | |
| parent | spi: sc18is602: Switch to generic firmware properties and drop of_match_ptr() (diff) | |
| download | wireguard-linux-e39531352aed30156b270a61ba075e5b8d3b8498.tar.xz wireguard-linux-e39531352aed30156b270a61ba075e5b8d3b8498.zip | |
spi: rockchip-sfc: Support ACPI
Compatible with ACPI.
Signed-off-by: Jon Lin <jon.lin@rock-chips.com>
Link: https://patch.msgid.link/20241120012208.1193034-1-jon.lin@rock-chips.com
Signed-off-by: Mark Brown <broonie@kernel.org>
| -rw-r--r-- | drivers/spi/spi-rockchip-sfc.c | 14 |
1 files 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) { |