diff mbox series

[v6,4/5] clk: qcom: gcc-sc7280: use new clk_regmap_pipe_src_ops for PCIe pipe clocks

Message ID 20220513175339.2981959-5-dmitry.baryshkov@linaro.org
State Superseded
Headers show
Series PCI: qcom: Rework pipe_clk/pipe_clk_src handling | expand

Commit Message

Dmitry Baryshkov May 13, 2022, 5:53 p.m. UTC 
Use newly defined clk_regmap_pipe_src_ops for PCIe pipe clocks to let
the clock framework automatically park the clock when the clock is
switched off and restore the parent when the clock is switched on.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
---
 drivers/clk/qcom/gcc-sc7280.c | 49 ++++++++++++++---------------------
 1 file changed, 19 insertions(+), 30 deletions(-)

Comments

Johan Hovold May 18, 2022, 7:37 a.m. UTC | #1 
On Fri, May 13, 2022 at 08:53:38PM +0300, Dmitry Baryshkov wrote:
> Use newly defined clk_regmap_pipe_src_ops for PCIe pipe clocks to let

clk_regmap_phy_mux

> the clock framework automatically park the clock when the clock is
> switched off and restore the parent when the clock is switched on.
> 
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

Looks good otherwise:

Reviewed-by: Johan Hovold <johan+linaro@kernel.org>
diff mbox series

Patch

diff --git a/drivers/clk/qcom/gcc-sc7280.c b/drivers/clk/qcom/gcc-sc7280.c
index 423627d49719..05589ddefcde 100644
--- a/drivers/clk/qcom/gcc-sc7280.c
+++ b/drivers/clk/qcom/gcc-sc7280.c
@@ -17,6 +17,7 @@ 
 #include "clk-rcg.h"
 #include "clk-regmap-divider.h"
 #include "clk-regmap-mux.h"
+#include "clk-regmap-phy-mux.h"
 #include "common.h"
 #include "gdsc.h"
 #include "reset.h"
@@ -255,26 +256,6 @@  static const struct clk_parent_data gcc_parent_data_5[] = {
 	{ .hw = &gcc_gpll0_out_even.clkr.hw },
 };
 
-static const struct parent_map gcc_parent_map_6[] = {
-	{ P_PCIE_0_PIPE_CLK, 0 },
-	{ P_BI_TCXO, 2 },
-};
-
-static const struct clk_parent_data gcc_parent_data_6[] = {
-	{ .fw_name = "pcie_0_pipe_clk", .name = "pcie_0_pipe_clk" },
-	{ .fw_name = "bi_tcxo" },
-};
-
-static const struct parent_map gcc_parent_map_7[] = {
-	{ P_PCIE_1_PIPE_CLK, 0 },
-	{ P_BI_TCXO, 2 },
-};
-
-static const struct clk_parent_data gcc_parent_data_7[] = {
-	{ .fw_name = "pcie_1_pipe_clk", .name = "pcie_1_pipe_clk" },
-	{ .fw_name = "bi_tcxo" },
-};
-
 static const struct parent_map gcc_parent_map_8[] = {
 	{ P_BI_TCXO, 0 },
 	{ P_GCC_GPLL0_OUT_MAIN, 1 },
@@ -369,32 +350,40 @@  static const struct clk_parent_data gcc_parent_data_15[] = {
 	{ .hw = &gcc_mss_gpll0_main_div_clk_src.clkr.hw },
 };
 
-static struct clk_regmap_mux gcc_pcie_0_pipe_clk_src = {
+static struct clk_regmap_phy_mux gcc_pcie_0_pipe_clk_src = {
 	.reg = 0x6b054,
 	.shift = 0,
 	.width = 2,
-	.parent_map = gcc_parent_map_6,
+	.phy_src_val = 0, /* pipe_clk */
+	.ref_src_val = 2, /* bi_tcxo */
 	.clkr = {
 		.hw.init = &(struct clk_init_data){
 			.name = "gcc_pcie_0_pipe_clk_src",
-			.parent_data = gcc_parent_data_6,
-			.num_parents = ARRAY_SIZE(gcc_parent_data_6),
-			.ops = &clk_regmap_mux_closest_ops,
+			.parent_data = &(const struct clk_parent_data){
+				.fw_name = "pcie_0_pipe_clk",
+			},
+			.num_parents = 1,
+			.flags = CLK_SET_RATE_PARENT,
+			.ops = &clk_regmap_phy_mux_ops,
 		},
 	},
 };
 
-static struct clk_regmap_mux gcc_pcie_1_pipe_clk_src = {
+static struct clk_regmap_phy_mux gcc_pcie_1_pipe_clk_src = {
 	.reg = 0x8d054,
 	.shift = 0,
 	.width = 2,
-	.parent_map = gcc_parent_map_7,
+	.phy_src_val = 0, /* pipe_clk */
+	.ref_src_val = 2, /* bi_tcxo */
 	.clkr = {
 		.hw.init = &(struct clk_init_data){
 			.name = "gcc_pcie_1_pipe_clk_src",
-			.parent_data = gcc_parent_data_7,
-			.num_parents = ARRAY_SIZE(gcc_parent_data_7),
-			.ops = &clk_regmap_mux_closest_ops,
+			.parent_data = &(const struct clk_parent_data){
+				.fw_name = "pcie_1_pipe_clk",
+			},
+			.num_parents = 1,
+			.flags = CLK_SET_RATE_PARENT,
+			.ops = &clk_regmap_phy_mux_ops,
 		},
 	},
 };