From: Jeffrey Hugo <jeffrey.l.hugo@xxxxxxxxx>
commit b1e8d713e6b2d59ee3a7b57c0dab88a19ec0cf33 upstream.
ufs_unipro_core_clk_src is required to allow UFS to clock scale for power
savings.
Fixes: b5f5f525c547 ("clk: qcom: Add MSM8998 Global Clock Control (GCC) driver")
Signed-off-by: Jeffrey Hugo <jeffrey.l.hugo@xxxxxxxxx>
Link: https://lkml.kernel.org/r/20200528142205.44003-1-jeffrey.l.hugo@xxxxxxxxx
Signed-off-by: Stephen Boyd <sboyd@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/clk/qcom/gcc-msm8998.c | 27 +++++++++++++++++++++++++++
include/dt-bindings/clock/qcom,gcc-msm8998.h | 1 +
2 files changed, 28 insertions(+)
--- a/drivers/clk/qcom/gcc-msm8998.c
+++ b/drivers/clk/qcom/gcc-msm8998.c
@@ -1110,6 +1110,27 @@ static struct clk_rcg2 ufs_axi_clk_src =
},
};
+static const struct freq_tbl ftbl_ufs_unipro_core_clk_src[] = {
+ F(37500000, P_GPLL0_OUT_MAIN, 16, 0, 0),
+ F(75000000, P_GPLL0_OUT_MAIN, 8, 0, 0),
+ F(150000000, P_GPLL0_OUT_MAIN, 4, 0, 0),
+ { }
+};
+
+static struct clk_rcg2 ufs_unipro_core_clk_src = {
+ .cmd_rcgr = 0x76028,
+ .mnd_width = 8,
+ .hid_width = 5,
+ .parent_map = gcc_parent_map_0,
+ .freq_tbl = ftbl_ufs_unipro_core_clk_src,
+ .clkr.hw.init = &(struct clk_init_data){
+ .name = "ufs_unipro_core_clk_src",
+ .parent_names = gcc_parent_names_0,
+ .num_parents = 4,
+ .ops = &clk_rcg2_ops,
+ },
+};
+
static const struct freq_tbl ftbl_usb30_master_clk_src[] = {
F(19200000, P_XO, 1, 0, 0),
F(60000000, P_GPLL0_OUT_MAIN, 10, 0, 0),
@@ -2549,6 +2570,11 @@ static struct clk_branch gcc_ufs_unipro_
.enable_mask = BIT(0),
.hw.init = &(struct clk_init_data){
.name = "gcc_ufs_unipro_core_clk",
+ .parent_names = (const char *[]){
+ "ufs_unipro_core_clk_src",
+ },
+ .num_parents = 1,
+ .flags = CLK_SET_RATE_PARENT,
.ops = &clk_branch2_ops,
},
},
@@ -2904,6 +2930,7 @@ static struct clk_regmap *gcc_msm8998_cl
[SDCC4_APPS_CLK_SRC] = &sdcc4_apps_clk_src.clkr,
[TSIF_REF_CLK_SRC] = &tsif_ref_clk_src.clkr,
[UFS_AXI_CLK_SRC] = &ufs_axi_clk_src.clkr,
+ [UFS_UNIPRO_CORE_CLK_SRC] = &ufs_unipro_core_clk_src.clkr,
[USB30_MASTER_CLK_SRC] = &usb30_master_clk_src.clkr,
[USB30_MOCK_UTMI_CLK_SRC] = &usb30_mock_utmi_clk_src.clkr,
[USB3_PHY_AUX_CLK_SRC] = &usb3_phy_aux_clk_src.clkr,
--- a/include/dt-bindings/clock/qcom,gcc-msm8998.h
+++ b/include/dt-bindings/clock/qcom,gcc-msm8998.h
@@ -183,6 +183,7 @@
#define GCC_MSS_SNOC_AXI_CLK 174
#define GCC_MSS_MNOC_BIMC_AXI_CLK 175
#define GCC_BIMC_GFX_CLK 176
+#define UFS_UNIPRO_CORE_CLK_SRC 177
#define PCIE_0_GDSC 0
#define UFS_GDSC 1
