[PATCH 1/3] mmc: dw_mmc: Add parsing mmc_clk_phase_map support
Shawn Lin
shawn.lin at rock-chips.com
Sun Mar 8 20:29:01 PDT 2026
The dw_mmc library already assists in invoking mmc_of_parse() to
provide unified parsing for variant drivers. We can also call
mmc_of_parse_clk_phase() to help variant drivers achieve unified parsing.
Signed-off-by: Shawn Lin <shawn.lin at rock-chips.com>
---
drivers/mmc/host/dw_mmc.c | 2 ++
drivers/mmc/host/dw_mmc.h | 2 ++
2 files changed, 4 insertions(+)
diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index edea9f4..bbdd759 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -2866,6 +2866,8 @@ static int dw_mci_init_host(struct dw_mci *host)
if (ret)
return ret;
+ mmc_of_parse_clk_phase(host->dev, &host->phase_map);
+
ret = dw_mci_init_host_caps(host);
if (ret)
return ret;
diff --git a/drivers/mmc/host/dw_mmc.h b/drivers/mmc/host/dw_mmc.h
index 9a27d77..42e58be 100644
--- a/drivers/mmc/host/dw_mmc.h
+++ b/drivers/mmc/host/dw_mmc.h
@@ -130,6 +130,7 @@ struct dw_mci_dma_slave {
* @pdev: platform_device registered
* @rstc: Reset controller for this host.
* @detect_delay_ms: Delay in mS before detecting cards after interrupt.
+ * @phase_map: The map for recording in and out phases for each timing
*
* Locking
* =======
@@ -250,6 +251,7 @@ struct dw_mci {
struct platform_device *pdev;
struct reset_control *rstc;
u32 detect_delay_ms;
+ struct mmc_clk_phase_map phase_map;
};
/* DMA ops for Internal/External DMAC interface */
--
2.7.4
More information about the Linux-rockchip
mailing list