diff mbox series

[v2,2/3] clk: renesas: r7s9210: Convert some clocks to early

Message ID 20180924164937.36536-3-chris.brandt@renesas.com (mailing list archive)
State Awaiting Upstream, archived
Headers show
Series clk: renesas: r7s9210: Add support for early clocks | expand

Commit Message

Chris Brandt Sept. 24, 2018, 4:49 p.m. UTC 
The OSTM timer driver for RZ/A2 uses TIMER_OF_DECLARE which requires the
ostm module clocks to be registers early in boot.

Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
---
v2:
 * List early clocks first
 * Remove unnecessary comments
 * Removed new function r7s9210_update_clk_table (to be included in a
   separate patch)
---
 drivers/clk/renesas/r7s9210-cpg-mssr.c | 32 ++++++++++++++++++++++++++------
 1 file changed, 26 insertions(+), 6 deletions(-)

Comments

Geert Uytterhoeven Sept. 26, 2018, 9:24 a.m. UTC | #1 
On Mon, Sep 24, 2018 at 6:50 PM Chris Brandt <chris.brandt@renesas.com> wrote:
> The OSTM timer driver for RZ/A2 uses TIMER_OF_DECLARE which requires the
> ostm module clocks to be registers early in boot.
>
> Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
> ---
> v2:
>  * List early clocks first
>  * Remove unnecessary comments
>  * Removed new function r7s9210_update_clk_table (to be included in a
>    separate patch)

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
i.e. will queue in clk-renesas-for-v4.20.

Gr{oetje,eeting}s,

                        Geert
diff mbox series

Patch

diff --git a/drivers/clk/renesas/r7s9210-cpg-mssr.c b/drivers/clk/renesas/r7s9210-cpg-mssr.c
index bd1dd4ff2051..7ab9030ef8b9 100644
--- a/drivers/clk/renesas/r7s9210-cpg-mssr.c
+++ b/drivers/clk/renesas/r7s9210-cpg-mssr.c
@@ -53,7 +53,7 @@  enum clk_ids {
 	MOD_CLK_BASE
 };
 
-static struct cpg_core_clk r7s9210_core_clks[] = {
+static struct cpg_core_clk r7s9210_early_core_clks[] = {
 	/* External Clock Inputs */
 	DEF_INPUT("extal",     CLK_EXTAL),
 
@@ -61,20 +61,26 @@  static struct cpg_core_clk r7s9210_core_clks[] = {
 	DEF_BASE(".main",       CLK_MAIN, CLK_TYPE_RZA_MAIN, CLK_EXTAL),
 	DEF_BASE(".pll",       CLK_PLL, CLK_TYPE_RZA_PLL, CLK_MAIN),
 
+	/* Core Clock Outputs */
+	DEF_FIXED("p1c",    R7S9210_CLK_P1C,   CLK_PLL,         16, 1),
+};
+
+static const struct mssr_mod_clk r7s9210_early_mod_clks[] __initconst = {
+	DEF_MOD_STB("ostm2",	 34,	R7S9210_CLK_P1C),
+	DEF_MOD_STB("ostm1",	 35,	R7S9210_CLK_P1C),
+	DEF_MOD_STB("ostm0",	 36,	R7S9210_CLK_P1C),
+};
+
+static struct cpg_core_clk r7s9210_core_clks[] = {
 	/* Core Clock Outputs */
 	DEF_FIXED("i",      R7S9210_CLK_I,     CLK_PLL,          2, 1),
 	DEF_FIXED("g",      R7S9210_CLK_G,     CLK_PLL,          4, 1),
 	DEF_FIXED("b",      R7S9210_CLK_B,     CLK_PLL,          8, 1),
 	DEF_FIXED("p1",     R7S9210_CLK_P1,    CLK_PLL,         16, 1),
-	DEF_FIXED("p1c",    R7S9210_CLK_P1C,   CLK_PLL,         16, 1),
 	DEF_FIXED("p0",     R7S9210_CLK_P0,    CLK_PLL,         32, 1),
 };
 
 static const struct mssr_mod_clk r7s9210_mod_clks[] __initconst = {
-	DEF_MOD_STB("ostm2",	 34,	R7S9210_CLK_P1C),
-	DEF_MOD_STB("ostm1",	 35,	R7S9210_CLK_P1C),
-	DEF_MOD_STB("ostm0",	 36,	R7S9210_CLK_P1C),
-
 	DEF_MOD_STB("scif4",	 43,	R7S9210_CLK_P1C),
 	DEF_MOD_STB("scif3",	 44,	R7S9210_CLK_P1C),
 	DEF_MOD_STB("scif2",	 45,	R7S9210_CLK_P1C),
@@ -170,6 +176,12 @@  struct clk * __init rza2_cpg_clk_register(struct device *dev,
 }
 
 const struct cpg_mssr_info r7s9210_cpg_mssr_info __initconst = {
+	/* Early Clocks */
+	.early_core_clks = r7s9210_early_core_clks,
+	.num_early_core_clks = ARRAY_SIZE(r7s9210_early_core_clks),
+	.early_mod_clks = r7s9210_early_mod_clks,
+	.num_early_mod_clks = ARRAY_SIZE(r7s9210_early_mod_clks),
+
 	/* Core Clocks */
 	.core_clks = r7s9210_core_clks,
 	.num_core_clks = ARRAY_SIZE(r7s9210_core_clks),
@@ -187,3 +199,11 @@  const struct cpg_mssr_info r7s9210_cpg_mssr_info __initconst = {
 	/* RZ/A2 has Standby Control Registers */
 	.stbyctrl = true,
 };
+
+static void __init r7s9210_cpg_mssr_early_init(struct device_node *np)
+{
+	cpg_mssr_early_init(np, &r7s9210_cpg_mssr_info);
+}
+
+CLK_OF_DECLARE_DRIVER(cpg_mstp_clks, "renesas,r7s9210-cpg-mssr",
+		      r7s9210_cpg_mssr_early_init);