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authorMichael Turquette <mturquette@baylibre.com>2016-04-28 22:01:42 +0300
committerMichael Turquette <mturquette@baylibre.com>2016-06-23 04:02:28 +0300
commitec623f2a43ebe482abc925f8785f462c0fe3c08a (patch)
treead3b7e1ea8077e360ab312e35a4a15d2748652f7 /drivers/clk/meson/meson8b-clkc.c
parente92f7cca446ec503251b58ad9a8b5592a2d927de (diff)
downloadlinux-ec623f2a43ebe482abc925f8785f462c0fe3c08a.tar.xz
clk: meson8b: clean up pll clocks
Remove the pll registration function and helpers. Replace unnecessary configuration struct with static initialization of the desired clock type. Tested-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Michael Turquette <mturquette@baylibre.com>
Diffstat (limited to 'drivers/clk/meson/meson8b-clkc.c')
-rw-r--r--drivers/clk/meson/meson8b-clkc.c115
1 files changed, 94 insertions, 21 deletions
diff --git a/drivers/clk/meson/meson8b-clkc.c b/drivers/clk/meson/meson8b-clkc.c
index 9afd4808b9c1..a3d8e6618043 100644
--- a/drivers/clk/meson/meson8b-clkc.c
+++ b/drivers/clk/meson/meson8b-clkc.c
@@ -110,7 +110,6 @@ static const struct clk_div_table cpu_div_table[] = {
{ /* sentinel */ },
};
-PNAME(p_xtal) = { "xtal" };
PNAME(p_fclk_div) = { "fixed_pll" };
PNAME(p_cpu_clk) = { "sys_pll" };
PNAME(p_clk81) = { "fclk_div3", "fclk_div4", "fclk_div5" };
@@ -120,19 +119,6 @@ PNAME(p_mali) = { "fclk_div3", "fclk_div4", "fclk_div5",
static u32 mux_table_clk81[] = { 6, 5, 7 };
static u32 mux_table_mali[] = { 6, 5, 7, 4, 0 };
-static struct pll_conf pll_confs = {
- .m = PARM(0x00, 0, 9),
- .n = PARM(0x00, 9, 5),
- .od = PARM(0x00, 16, 2),
-};
-
-static struct pll_conf sys_pll_conf = {
- .m = PARM(0x00, 0, 9),
- .n = PARM(0x00, 9, 5),
- .od = PARM(0x00, 16, 2),
- .rate_table = sys_pll_rate_table,
-};
-
static const struct composite_conf clk81_conf __initconst = {
.mux_table = mux_table_clk81,
.mux_flags = CLK_MUX_READ_ONLY,
@@ -166,13 +152,87 @@ static struct clk_fixed_rate meson8b_zero = {
},
};
+static struct meson_clk_pll meson8b_fixed_pll = {
+ .m = {
+ .reg_off = MESON8B_REG_PLL_FIXED,
+ .shift = 0,
+ .width = 9,
+ },
+ .n = {
+ .reg_off = MESON8B_REG_PLL_FIXED,
+ .shift = 9,
+ .width = 5,
+ },
+ .od = {
+ .reg_off = MESON8B_REG_PLL_FIXED,
+ .shift = 16,
+ .width = 2,
+ },
+ .lock = &clk_lock,
+ .hw.init = &(struct clk_init_data){
+ .name = "fixed_pll",
+ .ops = &meson_clk_pll_ro_ops,
+ .parent_names = (const char *[]){ "xtal" },
+ .num_parents = 1,
+ .flags = CLK_GET_RATE_NOCACHE,
+ },
+};
+
+static struct meson_clk_pll meson8b_vid_pll = {
+ .m = {
+ .reg_off = MESON8B_REG_PLL_VID,
+ .shift = 0,
+ .width = 9,
+ },
+ .n = {
+ .reg_off = MESON8B_REG_PLL_VID,
+ .shift = 9,
+ .width = 5,
+ },
+ .od = {
+ .reg_off = MESON8B_REG_PLL_VID,
+ .shift = 16,
+ .width = 2,
+ },
+ .lock = &clk_lock,
+ .hw.init = &(struct clk_init_data){
+ .name = "vid_pll",
+ .ops = &meson_clk_pll_ro_ops,
+ .parent_names = (const char *[]){ "xtal" },
+ .num_parents = 1,
+ .flags = CLK_GET_RATE_NOCACHE,
+ },
+};
+
+static struct meson_clk_pll meson8b_sys_pll = {
+ .m = {
+ .reg_off = MESON8B_REG_PLL_SYS,
+ .shift = 0,
+ .width = 9,
+ },
+ .n = {
+ .reg_off = MESON8B_REG_PLL_SYS,
+ .shift = 9,
+ .width = 5,
+ },
+ .od = {
+ .reg_off = MESON8B_REG_PLL_SYS,
+ .shift = 16,
+ .width = 2,
+ },
+ .rate_table = sys_pll_rate_table,
+ .rate_count = ARRAY_SIZE(sys_pll_rate_table),
+ .lock = &clk_lock,
+ .hw.init = &(struct clk_init_data){
+ .name = "sys_pll",
+ .ops = &meson_clk_pll_ops,
+ .parent_names = (const char *[]){ "xtal" },
+ .num_parents = 1,
+ .flags = CLK_GET_RATE_NOCACHE,
+ },
+};
+
static const struct clk_conf meson8b_clk_confs[] __initconst = {
- PLL(MESON8B_REG_PLL_FIXED, CLKID_PLL_FIXED, "fixed_pll",
- p_xtal, 0, &pll_confs),
- PLL(MESON8B_REG_PLL_VID, CLKID_PLL_VID, "vid_pll",
- p_xtal, 0, &pll_confs),
- PLL(MESON8B_REG_PLL_SYS, CLKID_PLL_SYS, "sys_pll",
- p_xtal, 0, &sys_pll_conf),
FIXED_FACTOR_DIV(CLKID_FCLK_DIV2, "fclk_div2", p_fclk_div, 0, 2),
FIXED_FACTOR_DIV(CLKID_FCLK_DIV3, "fclk_div3", p_fclk_div, 0, 3),
FIXED_FACTOR_DIV(CLKID_FCLK_DIV4, "fclk_div4", p_fclk_div, 0, 4),
@@ -197,14 +257,23 @@ static struct clk_hw_onecell_data meson8b_hw_onecell_data = {
.hws = {
[CLKID_XTAL] = &meson8b_xtal.hw,
[CLKID_ZERO] = &meson8b_zero.hw,
+ [CLKID_PLL_FIXED] = &meson8b_fixed_pll.hw,
+ [CLKID_PLL_VID] = &meson8b_vid_pll.hw,
+ [CLKID_PLL_SYS] = &meson8b_sys_pll.hw,
},
.num = CLK_NR_CLKS,
};
+static struct meson_clk_pll *const meson8b_clk_plls[] = {
+ &meson8b_fixed_pll,
+ &meson8b_vid_pll,
+ &meson8b_sys_pll,
+};
+
static void __init meson8b_clkc_init(struct device_node *np)
{
void __iomem *clk_base;
- int ret, clkid;
+ int ret, clkid, i;
if (!meson_clk_init(np, CLK_NR_CLKS))
return;
@@ -216,6 +285,10 @@ static void __init meson8b_clkc_init(struct device_node *np)
return;
}
+ /* Populate base address for PLLs */
+ for (i = 0; i < ARRAY_SIZE(meson8b_clk_plls); i++)
+ meson8b_clk_plls[i]->base = clk_base;
+
/*
* register all clks
* CLKID_UNUSED = 0, so skip it and start with CLKID_XTAL = 1