linux-kernel - [PATCH 2/2] phy: cdns-dphy: Remove leftover code

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Message-Id: <20250723-cdns-dphy-hs-clk-rate-fix-v1-2-d4539d44cbe7@ideasonboard.com>
Date: Wed, 23 Jul 2025 13:01:29 +0300
From: Tomi Valkeinen <tomi.valkeinen@...asonboard.com>
To: Vinod Koul <vkoul@...nel.org>, 
 Kishon Vijay Abraham I <kishon@...nel.org>
Cc: linux-phy@...ts.infradead.org, linux-kernel@...r.kernel.org, 
 Parth Pancholi <parth.pancholi@...adex.com>, 
 Devarsh Thakkar <devarsht@...com>, Francesco Dolcini <francesco@...cini.it>, 
 Tomi Valkeinen <tomi.valkeinen@...asonboard.com>, 
 Aradhya Bhatia <aradhya.bhatia@...ux.dev>, 
 Jayesh Choudhary <j-choudhary@...com>
Subject: [PATCH 2/2] phy: cdns-dphy: Remove leftover code

The code in cdns-dphy has probably been part of a DSI driver in the
past. Remove DSI defines and variables which are not used or do not
actually do anything. Also rename cdns_dsi_get_dphy_pll_cfg() to
cdns_dphy_get_pll_cfg(), i.e. drop the "dsi", as it's not relevant here.

Reviewed-by: Aradhya Bhatia <aradhya.bhatia@...ux.dev>
Tested-by: Parth Pancholi <parth.pancholi@...adex.com>
Acked-by: Vinod Koul <vkoul@...nel.org>
Tested-by: Jayesh Choudhary <j-choudhary@...com>
Reviewed-by: Devarsh Thakkar <devarsht@...com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@...asonboard.com>
---
 drivers/phy/cadence/cdns-dphy.c | 19 ++++---------------
 1 file changed, 4 insertions(+), 15 deletions(-)

diff --git a/drivers/phy/cadence/cdns-dphy.c b/drivers/phy/cadence/cdns-dphy.c
index f79ec4fab409..33a42e72362e 100644
--- a/drivers/phy/cadence/cdns-dphy.c
+++ b/drivers/phy/cadence/cdns-dphy.c
@@ -55,14 +55,6 @@
 #define DPHY_PSM_CFG_FROM_REG		BIT(0)
 #define DPHY_PSM_CLK_DIV(x)		((x) << 1)
 
-#define DSI_HBP_FRAME_OVERHEAD		12
-#define DSI_HSA_FRAME_OVERHEAD		14
-#define DSI_HFP_FRAME_OVERHEAD		6
-#define DSI_HSS_VSS_VSE_FRAME_OVERHEAD	4
-#define DSI_BLANKING_FRAME_OVERHEAD	6
-#define DSI_NULL_FRAME_OVERHEAD		6
-#define DSI_EOT_PKT_SIZE		4
-
 #define DPHY_TX_J721E_WIZ_PLL_CTRL	0xF04
 #define DPHY_TX_J721E_WIZ_STATUS	0xF08
 #define DPHY_TX_J721E_WIZ_RST_CTRL	0xF0C
@@ -117,10 +109,9 @@ static const unsigned int tx_bands[] = {
 	870, 950, 1000, 1200, 1400, 1600, 1800, 2000, 2200, 2500
 };
 
-static int cdns_dsi_get_dphy_pll_cfg(struct cdns_dphy *dphy,
-				     struct cdns_dphy_cfg *cfg,
-				     struct phy_configure_opts_mipi_dphy *opts,
-				     unsigned int *dsi_hfp_ext)
+static int cdns_dphy_get_pll_cfg(struct cdns_dphy *dphy,
+				 struct cdns_dphy_cfg *cfg,
+				 struct phy_configure_opts_mipi_dphy *opts)
 {
 	unsigned long pll_ref_hz = clk_get_rate(dphy->pll_ref_clk);
 	u64 dlane_bps;
@@ -289,15 +280,13 @@ static int cdns_dphy_config_from_opts(struct phy *phy,
 				      struct cdns_dphy_cfg *cfg)
 {
 	struct cdns_dphy *dphy = phy_get_drvdata(phy);
-	unsigned int dsi_hfp_ext = 0;
 	int ret;
 
 	ret = phy_mipi_dphy_config_validate(opts);
 	if (ret)
 		return ret;
 
-	ret = cdns_dsi_get_dphy_pll_cfg(dphy, cfg,
-					opts, &dsi_hfp_ext);
+	ret = cdns_dphy_get_pll_cfg(dphy, cfg, opts);
 	if (ret)
 		return ret;
 

-- 
2.43.0