shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-07 11:26:02 +09:00
Code Issues Packages Projects Releases Wiki Activity

spi: spi-rockchip-sfc: Support maximum dll cell setting for chips

Browse Source 
Change-Id: I9bee5b29db8c1eb657720101f32c8d057328451c
Signed-off-by: Jon Lin <jon.lin@rock-chips.com>
This commit is contained in:
Jon Lin
2024-08-09 19:17:17 +08:00
committed by Tao Huang
parent ec95dade2e
commit 2b1b24b4f0
1 changed files with 8 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/spi/spi-rockchip-sfc.c
View File

@@ -212,6 +212,7 @@ struct rockchip_sfc {
bool use_dma;
bool sclk_x2_bypass;
u32 max_iosize;
u32 max_dll_cells;
u32 dll_cells[SFC_MAX_CHIPSELECT_NUM];
u16 version;
struct gpio_desc *rst_gpio;
@@ -255,6 +256,9 @@ static u32 rockchip_sfc_get_max_iosize(struct rockchip_sfc *sfc)
static u32 rockchip_sfc_get_max_dll_cells(struct rockchip_sfc *sfc)
{
if (sfc->max_dll_cells)
return sfc->max_dll_cells;
if (sfc->version > SFC_VER_4)
return SFC_DLL_CTRL0_DLL_MAX_VER5;
else if (sfc->version == SFC_VER_4)
@@ -953,6 +957,10 @@ static int rockchip_sfc_probe(struct platform_device *pdev)
sfc->sclk_x2_bypass = of_property_read_bool(sfc->dev->of_node,
"rockchip,sclk-x2-bypass");
device_property_read_u32(&pdev->dev, "rockchip,max-dll", &sfc->max_dll_cells);
if (sfc->max_dll_cells > SFC_DLL_CTRL0_DLL_MAX_VER5)
sfc->max_dll_cells = SFC_DLL_CTRL0_DLL_MAX_VER5;
ret = rockchip_sfc_get_gpio_descs(master, sfc);
if (ret) {
dev_err(&pdev->dev, "Failed to get gpio_descs\n");