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Date: Wed, 16 Jan 2019 18:54:33 +0100
From: Jerome Brunet <jbrunet@...libre.com>
To: Neil Armstrong <narmstrong@...libre.com>
Cc: Jerome Brunet <jbrunet@...libre.com>,
Michael Turquette <mturquette@...libre.com>,
Stephen Boyd <sboyd@...nel.org>,
Kevin Hilman <khilman@...libre.com>,
linux-amlogic@...ts.infradead.org,
linux-arm-kernel@...ts.infradead.org, linux-clk@...r.kernel.org,
linux-kernel@...r.kernel.org, patchwork-bot+notify@...nel.org
Subject: [PATCH 1/3] clk: meson: gxbb: claim clock controller input clock from DT
Instead of relying on a fixed name for the xtal clock, claim the
controller input clock trough DT.
Signed-off-by: Jerome Brunet <jbrunet@...libre.com>
---
drivers/clk/meson/gxbb.c | 37 ++++++++++++++++++++++++-------------
1 file changed, 24 insertions(+), 13 deletions(-)
diff --git a/drivers/clk/meson/gxbb.c b/drivers/clk/meson/gxbb.c
index 65f2599e5243..ecf9a8f6281c 100644
--- a/drivers/clk/meson/gxbb.c
+++ b/drivers/clk/meson/gxbb.c
@@ -16,6 +16,8 @@
#include "gxbb.h"
#include "clk-regmap.h"
+#define IN_PREFIX "ee-in-"
+
static DEFINE_SPINLOCK(meson_clk_lock);
static const struct pll_params_table gxbb_gp0_pll_params_table[] = {
@@ -118,7 +120,7 @@ static struct clk_regmap gxbb_fixed_pll_dco = {
.hw.init = &(struct clk_init_data){
.name = "fixed_pll_dco",
.ops = &meson_clk_pll_ro_ops,
- .parent_names = (const char *[]){ "xtal" },
+ .parent_names = (const char *[]){ IN_PREFIX "xtal" },
.num_parents = 1,
},
};
@@ -148,7 +150,7 @@ static struct clk_fixed_factor gxbb_hdmi_pll_pre_mult = {
.hw.init = &(struct clk_init_data){
.name = "hdmi_pll_pre_mult",
.ops = &clk_fixed_factor_ops,
- .parent_names = (const char *[]){ "xtal" },
+ .parent_names = (const char *[]){ IN_PREFIX "xtal" },
.num_parents = 1,
},
};
@@ -241,7 +243,7 @@ static struct clk_regmap gxl_hdmi_pll_dco = {
.hw.init = &(struct clk_init_data){
.name = "hdmi_pll_dco",
.ops = &meson_clk_pll_ro_ops,
- .parent_names = (const char *[]){ "xtal" },
+ .parent_names = (const char *[]){ IN_PREFIX "xtal" },
.num_parents = 1,
/*
* Display directly handle hdmi pll registers ATM, we need
@@ -378,7 +380,7 @@ static struct clk_regmap gxbb_sys_pll_dco = {
.hw.init = &(struct clk_init_data){
.name = "sys_pll_dco",
.ops = &meson_clk_pll_ro_ops,
- .parent_names = (const char *[]){ "xtal" },
+ .parent_names = (const char *[]){ IN_PREFIX "xtal" },
.num_parents = 1,
},
};
@@ -439,7 +441,7 @@ static struct clk_regmap gxbb_gp0_pll_dco = {
.hw.init = &(struct clk_init_data){
.name = "gp0_pll_dco",
.ops = &meson_clk_pll_ops,
- .parent_names = (const char *[]){ "xtal" },
+ .parent_names = (const char *[]){ IN_PREFIX "xtal" },
.num_parents = 1,
},
};
@@ -491,7 +493,7 @@ static struct clk_regmap gxl_gp0_pll_dco = {
.hw.init = &(struct clk_init_data){
.name = "gp0_pll_dco",
.ops = &meson_clk_pll_ops,
- .parent_names = (const char *[]){ "xtal" },
+ .parent_names = (const char *[]){ IN_PREFIX "xtal" },
.num_parents = 1,
},
};
@@ -789,7 +791,7 @@ static struct clk_regmap gxbb_mpll2 = {
static u32 mux_table_clk81[] = { 0, 2, 3, 4, 5, 6, 7 };
static const char * const clk81_parent_names[] = {
- "xtal", "fclk_div7", "mpll1", "mpll2", "fclk_div4",
+ IN_PREFIX "xtal", "fclk_div7", "mpll1", "mpll2", "fclk_div4",
"fclk_div3", "fclk_div5"
};
@@ -852,7 +854,7 @@ static struct clk_regmap gxbb_sar_adc_clk_sel = {
.name = "sar_adc_clk_sel",
.ops = &clk_regmap_mux_ops,
/* NOTE: The datasheet doesn't list the parents for bit 10 */
- .parent_names = (const char *[]){ "xtal", "clk81", },
+ .parent_names = (const char *[]){ IN_PREFIX "xtal", "clk81", },
.num_parents = 2,
},
};
@@ -891,7 +893,7 @@ static struct clk_regmap gxbb_sar_adc_clk = {
*/
static const char * const gxbb_mali_0_1_parent_names[] = {
- "xtal", "gp0_pll", "mpll2", "mpll1", "fclk_div7",
+ IN_PREFIX "xtal", "gp0_pll", "mpll2", "mpll1", "fclk_div7",
"fclk_div4", "fclk_div3", "fclk_div5"
};
@@ -1153,7 +1155,7 @@ static struct clk_regmap gxbb_32k_clk = {
};
static const char * const gxbb_32k_clk_parent_names[] = {
- "xtal", "cts_slow_oscin", "fclk_div3", "fclk_div5"
+ IN_PREFIX "xtal", "cts_slow_oscin", "fclk_div3", "fclk_div5"
};
static struct clk_regmap gxbb_32k_clk_sel = {
@@ -1172,7 +1174,7 @@ static struct clk_regmap gxbb_32k_clk_sel = {
};
static const char * const gxbb_sd_emmc_clk0_parent_names[] = {
- "xtal", "fclk_div2", "fclk_div3", "fclk_div5", "fclk_div7",
+ IN_PREFIX "xtal", "fclk_div2", "fclk_div3", "fclk_div5", "fclk_div7",
/*
* Following these parent clocks, we should also have had mpll2, mpll3
@@ -2138,7 +2140,7 @@ static struct clk_regmap gxbb_hdmi_tx = {
/* HDMI Clocks */
static const char * const gxbb_hdmi_parent_names[] = {
- "xtal", "fclk_div4", "fclk_div3", "fclk_div5"
+ IN_PREFIX "xtal", "fclk_div4", "fclk_div3", "fclk_div5"
};
static struct clk_regmap gxbb_hdmi_sel = {
@@ -2285,7 +2287,7 @@ static struct clk_regmap gxbb_vdec_hevc = {
static u32 mux_table_gen_clk[] = { 0, 4, 5, 6, 7, 8,
9, 10, 11, 13, 14, };
static const char * const gen_clk_parent_names[] = {
- "xtal", "vdec_1", "vdec_hevc", "mpll0", "mpll1", "mpll2",
+ IN_PREFIX "xtal", "vdec_1", "vdec_hevc", "mpll0", "mpll1", "mpll2",
"fclk_div4", "fclk_div3", "fclk_div5", "fclk_div7", "gp0_pll",
};
@@ -3085,6 +3087,7 @@ static const struct of_device_id clkc_match_table[] = {
static int gxbb_clkc_probe(struct platform_device *pdev)
{
const struct clkc_data *clkc_data;
+ struct clk_hw *input;
struct regmap *map;
int ret, i;
struct device *dev = &pdev->dev;
@@ -3100,6 +3103,14 @@ static int gxbb_clkc_probe(struct platform_device *pdev)
return PTR_ERR(map);
}
+ input = meson_clk_hw_register_input(dev, "xtal", IN_PREFIX "xtal", 0);
+ if (IS_ERR(input)) {
+ ret = PTR_ERR(input);
+ if (ret != -EPROBE_DEFER)
+ dev_err(dev, "failed to get input clock");
+ return ret;
+ }
+
/* Populate regmap for the common regmap backed clocks */
for (i = 0; i < ARRAY_SIZE(gx_clk_regmaps); i++)
gx_clk_regmaps[i]->map = map;
--
2.20.1
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