clk: tegra: Modify tegra_audio_clk_init to accept more plls

tegra_audio_clk_init was written expecting a single PLL to be
passed in directly. Change this to accept an array which will
allow for supporting multiple plls and specifying specific data
about them, like their parent, which may change over time.

Reviewed-by: Benson Leung <bleung@chromium.org>
Signed-off-by: Rhyland Klein <rklein@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

5 files changed, 56 insertions, 11 deletions

diff --git a/drivers/clk/tegra/clk-tegra-audio.c b/drivers/clk/tegra/clk-tegra-audio.c
index 11e3ad7ad7a3..e2bfa9b368f6 100644
--- a/drivers/clk/tegra/clk-tegra-audio.c
+++ b/drivers/clk/tegra/clk-tegra-audio.c
@@ -125,18 +125,29 @@ static struct tegra_audio2x_clk_initdata audio2x_clks[] = {
 
 void __init tegra_audio_clk_init(void __iomem *clk_base,
                         void __iomem *pmc_base, struct tegra_clk *tegra_clks,
-                        struct tegra_clk_pll_params *pll_a_params)
+                        struct tegra_audio_clk_info *audio_info,
+                        unsigned int num_plls)
 {
         struct clk *clk;
         struct clk **dt_clk;
         int i;
 
-        /* PLLA */
-        dt_clk = tegra_lookup_dt_id(tegra_clk_pll_a, tegra_clks);
-        if (dt_clk) {
-                clk = tegra_clk_register_pll("pll_a", "pll_p_out1", clk_base,
-                                pmc_base, 0, pll_a_params, NULL);
-                *dt_clk = clk;
+        if (!audio_info || num_plls < 1) {
+                pr_err("No audio data passed to tegra_audio_clk_init\n");
+                WARN_ON(1);
+                return;
+        }
+
+        for (i = 0; i < num_plls; i++) {
+                struct tegra_audio_clk_info *info = &audio_info[i];
+
+                dt_clk = tegra_lookup_dt_id(info->clk_id, tegra_clks);
+                if (dt_clk) {
+                        clk = tegra_clk_register_pll(info->name, info->parent,
+                                        clk_base, pmc_base, 0, info->pll_params,
+                                        NULL);
+                        *dt_clk = clk;
+                }
         }
 
         /* PLLA_OUT0 */
diff --git a/drivers/clk/tegra/clk-tegra114.c b/drivers/clk/tegra/clk-tegra114.c
index db5871519bf5..b7d03e9add97 100644
--- a/drivers/clk/tegra/clk-tegra114.c
+++ b/drivers/clk/tegra/clk-tegra114.c
@@ -933,6 +933,10 @@ static u32 mux_pllm_pllc2_c_c3_pllp_plla_idx[] = {
         [0] = 0, [1] = 1, [2] = 2, [3] = 3, [4] = 4, [5] = 6,
 };
 
+static struct tegra_audio_clk_info tegra114_audio_plls[] = {
+        { "pll_a", &pll_a_params, tegra_clk_pll_a, "pll_p_out1" },
+};
+
 static struct clk **clks;
 
 static unsigned long osc_freq;
@@ -1481,7 +1485,9 @@ static void __init tegra114_clock_init(struct device_node *np)
         tegra114_fixed_clk_init(clk_base);
         tegra114_pll_init(clk_base, pmc_base);
         tegra114_periph_clk_init(clk_base, pmc_base);
-        tegra_audio_clk_init(clk_base, pmc_base, tegra114_clks, &pll_a_params);
+        tegra_audio_clk_init(clk_base, pmc_base, tegra114_clks,
+                             tegra114_audio_plls,
+                             ARRAY_SIZE(tegra114_audio_plls));
         tegra_pmc_clk_init(pmc_base, tegra114_clks);
         tegra_super_clk_gen4_init(clk_base, pmc_base, tegra114_clks,
                                         &pll_x_params);
diff --git a/drivers/clk/tegra/clk-tegra124.c b/drivers/clk/tegra/clk-tegra124.c
index 824d75883d2b..87975f7adddc 100644
--- a/drivers/clk/tegra/clk-tegra124.c
+++ b/drivers/clk/tegra/clk-tegra124.c
@@ -1417,6 +1417,10 @@ static struct tegra_clk_init_table tegra132_init_table[] __initdata = {
         {TEGRA124_CLK_CLK_MAX, TEGRA124_CLK_CLK_MAX, 0, 0},
 };
 
+static struct tegra_audio_clk_info tegra124_audio_plls[] = {
+        { "pll_a", &pll_a_params, tegra_clk_pll_a, "pll_p_out1" },
+};
+
 /**
  * tegra124_clock_apply_init_table - initialize clocks on Tegra124 SoCs
  *
@@ -1555,7 +1559,9 @@ static void __init tegra124_132_clock_init_pre(struct device_node *np)
         tegra_fixed_clk_init(tegra124_clks);
         tegra124_pll_init(clk_base, pmc_base);
         tegra124_periph_clk_init(clk_base, pmc_base);
-        tegra_audio_clk_init(clk_base, pmc_base, tegra124_clks, &pll_a_params);
+        tegra_audio_clk_init(clk_base, pmc_base, tegra124_clks,
+                             tegra124_audio_plls,
+                             ARRAY_SIZE(tegra124_audio_plls));
         tegra_pmc_clk_init(pmc_base, tegra124_clks);
 
         /* For Tegra124 & Tegra132, PLLD is the only source for DSIA & DSIB */
diff --git a/drivers/clk/tegra/clk-tegra30.c b/drivers/clk/tegra/clk-tegra30.c
index fad561a5896b..b90db615c29e 100644
--- a/drivers/clk/tegra/clk-tegra30.c
+++ b/drivers/clk/tegra/clk-tegra30.c
@@ -1405,6 +1405,10 @@ static const struct of_device_id pmc_match[] __initconst = {
         {},
 };
 
+static struct tegra_audio_clk_info tegra30_audio_plls[] = {
+        { "pll_a", &pll_a_params, tegra_clk_pll_a, "pll_p_out1" },
+};
+
 static void __init tegra30_clock_init(struct device_node *np)
 {
         struct device_node *node;
@@ -1442,7 +1446,9 @@ static void __init tegra30_clock_init(struct device_node *np)
         tegra30_pll_init();
         tegra30_super_clk_init();
         tegra30_periph_clk_init();
-        tegra_audio_clk_init(clk_base, pmc_base, tegra30_clks, &pll_a_params);
+        tegra_audio_clk_init(clk_base, pmc_base, tegra30_clks,
+                             tegra30_audio_plls,
+                             ARRAY_SIZE(tegra30_audio_plls));
         tegra_pmc_clk_init(pmc_base, tegra30_clks);
 
         tegra_init_dup_clks(tegra_clk_duplicates, clks, TEGRA30_CLK_CLK_MAX);
diff --git a/drivers/clk/tegra/clk.h b/drivers/clk/tegra/clk.h
index bdc661cb81f0..5d2678914160 100644
--- a/drivers/clk/tegra/clk.h
+++ b/drivers/clk/tegra/clk.h
@@ -270,6 +270,21 @@ struct tegra_clk_pll {
 
 #define to_clk_pll(_hw) container_of(_hw, struct tegra_clk_pll, hw)
 
+/**
+ * struct tegra_audio_clk_info - Tegra Audio Clk Information
+ *
+ * @name:       name for the audio pll
+ * @pll_params: pll_params for audio pll
+ * @clk_id:     clk_ids for the audio pll
+ * @parent:     name of the parent of the audio pll
+ */
+struct tegra_audio_clk_info {
+        char *name;
+        struct tegra_clk_pll_params *pll_params;
+        int clk_id;
+        char *parent;
+};
+
 extern const struct clk_ops tegra_clk_pll_ops;
 extern const struct clk_ops tegra_clk_plle_ops;
 struct clk *tegra_clk_register_pll(const char *name, const char *parent_name,
@@ -622,7 +637,8 @@ void tegra_register_devclks(struct tegra_devclk *dev_clks, int num);
 
 void tegra_audio_clk_init(void __iomem *clk_base,
                         void __iomem *pmc_base, struct tegra_clk *tegra_clks,
-                        struct tegra_clk_pll_params *pll_params);
+                        struct tegra_audio_clk_info *audio_info,
+                        unsigned int num_plls);
 
 void tegra_periph_clk_init(void __iomem *clk_base, void __iomem *pmc_base,
                         struct tegra_clk *tegra_clks,