diff mbox series

[v3,3/3] media: platform: rzg2l-cru: rzg2l-video: Use clk_poll_disable_unprepare()

Message ID 20240318110842.41956-4-biju.das.jz@bp.renesas.com (mailing list archive)
State New
Delegated to: Kieran Bingham
Headers show
Series Add clk_poll_disable_unprepare() | expand

Commit Message

Biju Das March 18, 2024, 11:08 a.m. UTC 
Use the clk_poll_disable_unprepare() for synchronizing clk gating in
rzg2l_csi2_mipi_link_enable().

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
---
v2->v3:
 * No change.
v1->v2:
 * Replaced clk_disable_unprepare_sync()-->clk_poll_disable_unprepare()
   and the error propagated to the caller.
---
 drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c
index e68fcdaea207..986435bd85c1 100644
--- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c
+++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c
@@ -366,6 +366,7 @@  static int rzg2l_csi2_mipi_link_enable(struct rzg2l_csi2 *csi2)
 {
 	unsigned long vclk_rate = csi2->vclk_rate / HZ_PER_MHZ;
 	u32 frrskw, frrclk, frrskw_coeff, frrclk_coeff;
+	int ret;
 
 	/* Select data lanes */
 	rzg2l_csi2_write(csi2, CSI2nMCT0, CSI2nMCT0_VDLN(csi2->lanes));
@@ -387,7 +388,9 @@  static int rzg2l_csi2_mipi_link_enable(struct rzg2l_csi2 *csi2)
 	rzg2l_csi2_write(csi2, CSI2nDTEL, 0xf778ff0f);
 	rzg2l_csi2_write(csi2, CSI2nDTEH, 0x00ffff1f);
 
-	clk_disable_unprepare(csi2->vclk);
+	ret = clk_poll_disable_unprepare(csi2->vclk, 10, 10000);
+	if (ret)
+		return ret;
 
 	/* Enable LINK reception */
 	rzg2l_csi2_write(csi2, CSI2nMCT3, CSI2nMCT3_RXEN);