From: Santosh Shilimkar <santosh.shilimkar@xxxxxx>
On OMAP4 platform the iclk control is completly under hardware control
and no software control is available.
This difference w.r.t previous OMAP's needs all the common driver
accross OMAP's , cpu_is_xxxx() checks. To avoid poulluting the
drivers dummy clock nodes are created (The autogeneration
script has been updated accordingly).
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@xxxxxx>
Signed-off-by: Rajendra Nayak <rnayak@xxxxxx>
Signed-off-by: Benoit Cousson <b-cousson@xxxxxx>
[paul@xxxxxxxxx: made OMAP1 dummy_ck common and edited patch to reuse that]
Signed-off-by: Paul Walmsley <paul@xxxxxxxxx>
---
arch/arm/mach-omap1/clock.c | 14 ------------
arch/arm/mach-omap1/clock_data.c | 6 -----
arch/arm/mach-omap2/clock.h | 1 +
arch/arm/mach-omap2/clock44xx_data.c | 35 +++++++++++++++++++++++++++++++
arch/arm/plat-omap/clock.c | 10 +++++++++
arch/arm/plat-omap/include/plat/clock.h | 2 ++
6 files changed, 48 insertions(+), 20 deletions(-)
diff --git a/arch/arm/mach-omap1/clock.c b/arch/arm/mach-omap1/clock.c
index 0ba044d..e0aec10 100644
--- a/arch/arm/mach-omap1/clock.c
+++ b/arch/arm/mach-omap1/clock.c
@@ -38,20 +38,6 @@ struct clk *api_ck_p, *ck_dpll1_p, *ck_ref_p;
* Omap1 specific clock functions
*-------------------------------------------------------------------------*/
-static int clk_omap1_dummy_enable(struct clk *clk)
-{
- return 0;
-}
-
-static void clk_omap1_dummy_disable(struct clk *clk)
-{
-}
-
-const struct clkops clkops_dummy = {
- .enable = clk_omap1_dummy_enable,
- .disable = clk_omap1_dummy_disable,
-};
-
unsigned long omap1_uart_recalc(struct clk *clk)
{
unsigned int val = __raw_readl(clk->enable_reg);
diff --git a/arch/arm/mach-omap1/clock_data.c b/arch/arm/mach-omap1/clock_data.c
index 8b1d14d..aa8558a 100644
--- a/arch/arm/mach-omap1/clock_data.c
+++ b/arch/arm/mach-omap1/clock_data.c
@@ -27,12 +27,6 @@
* Omap1 clocks
*-------------------------------------------------------------------------*/
-/* XXX is this necessary? */
-static struct clk dummy_ck = {
- .name = "dummy",
- .ops = &clkops_dummy,
-};
-
static struct clk ck_ref = {
.name = "ck_ref",
.ops = &clkops_null,
diff --git a/arch/arm/mach-omap2/clock.h b/arch/arm/mach-omap2/clock.h
index 49ad473..816d932 100644
--- a/arch/arm/mach-omap2/clock.h
+++ b/arch/arm/mach-omap2/clock.h
@@ -101,6 +101,7 @@ void omap2_clk_print_new_rates(const char *hfclkin_ck_name,
extern u8 cpu_mask;
extern const struct clkops clkops_omap2_dflt_wait;
+extern const struct clkops clkops_dummy;
extern const struct clkops clkops_omap2_dflt;
extern struct clk_functions omap2_clk_functions;
diff --git a/arch/arm/mach-omap2/clock44xx_data.c b/arch/arm/mach-omap2/clock44xx_data.c
index c0825cf..28b1079 100644
--- a/arch/arm/mach-omap2/clock44xx_data.c
+++ b/arch/arm/mach-omap2/clock44xx_data.c
@@ -2645,6 +2645,41 @@ static struct omap_clk omap44xx_clks[] = {
CLK(NULL, "usim_fclk", &usim_fclk, CK_443X),
CLK(NULL, "utmi_p1_gfclk_ck", &utmi_p1_gfclk_ck, CK_443X),
CLK(NULL, "utmi_p2_gfclk_ck", &utmi_p2_gfclk_ck, CK_443X),
+ CLK(NULL, "gpio1_dbck", &dummy_ck, CK_443X),
+ CLK(NULL, "gpio2_dbck", &dummy_ck, CK_443X),
+ CLK(NULL, "gpio3_dbck", &dummy_ck, CK_443X),
+ CLK(NULL, "gpio4_dbck", &dummy_ck, CK_443X),
+ CLK(NULL, "gpio5_dbck", &dummy_ck, CK_443X),
+ CLK(NULL, "gpio6_dbck", &dummy_ck, CK_443X),
+ CLK(NULL, "gpmc_ck", &dummy_ck, CK_443X),
+ CLK(NULL, "gpt1_ick", &dummy_ck, CK_443X),
+ CLK(NULL, "gpt2_ick", &dummy_ck, CK_443X),
+ CLK(NULL, "gpt3_ick", &dummy_ck, CK_443X),
+ CLK(NULL, "gpt4_ick", &dummy_ck, CK_443X),
+ CLK(NULL, "gpt5_ick", &dummy_ck, CK_443X),
+ CLK(NULL, "gpt6_ick", &dummy_ck, CK_443X),
+ CLK(NULL, "gpt7_ick", &dummy_ck, CK_443X),
+ CLK(NULL, "gpt8_ick", &dummy_ck, CK_443X),
+ CLK(NULL, "gpt9_ick", &dummy_ck, CK_443X),
+ CLK(NULL, "gpt10_ick", &dummy_ck, CK_443X),
+ CLK(NULL, "gpt11_ick", &dummy_ck, CK_443X),
+ CLK("i2c_omap.1", "ick", &dummy_ck, CK_443X),
+ CLK("i2c_omap.2", "ick", &dummy_ck, CK_443X),
+ CLK("i2c_omap.3", "ick", &dummy_ck, CK_443X),
+ CLK("i2c_omap.4", "ick", &dummy_ck, CK_443X),
+ CLK("omap-mcbsp.1", "ick", &dummy_ck, CK_443X),
+ CLK("omap-mcbsp.2", "ick", &dummy_ck, CK_443X),
+ CLK("omap-mcbsp.3", "ick", &dummy_ck, CK_443X),
+ CLK("omap-mcbsp.4", "ick", &dummy_ck, CK_443X),
+ CLK("omap-mcspi.1", "ick", &dummy_ck, CK_443X),
+ CLK("omap-mcspi.2", "ick", &dummy_ck, CK_443X),
+ CLK("omap-mcspi.3", "ick", &dummy_ck, CK_443X),
+ CLK("omap-mcspi.4", "ick", &dummy_ck, CK_443X),
+ CLK(NULL, "uart1_ick", &dummy_ck, CK_443X),
+ CLK(NULL, "uart2_ick", &dummy_ck, CK_443X),
+ CLK(NULL, "uart3_ick", &dummy_ck, CK_443X),
+ CLK(NULL, "uart4_ick", &dummy_ck, CK_443X),
+ CLK("omap_wdt", "ick", &dummy_ck, CK_443X),
};
int __init omap4xxx_clk_init(void)
diff --git a/arch/arm/plat-omap/clock.c b/arch/arm/plat-omap/clock.c
index 6cc13e7..5261a09 100644
--- a/arch/arm/plat-omap/clock.c
+++ b/arch/arm/plat-omap/clock.c
@@ -357,6 +357,16 @@ const struct clkops clkops_null = {
.disable = clkll_disable_null,
};
+/*
+ * Dummy clock
+ *
+ * Used for clock aliases that are needed on some OMAPs, but not others
+ */
+struct clk dummy_ck = {
+ .name = "dummy",
+ .ops = &clkops_null,
+};
+
#ifdef CONFIG_CPU_FREQ
void clk_init_cpufreq_table(struct cpufreq_frequency_table **table)
{
diff --git a/arch/arm/plat-omap/include/plat/clock.h b/arch/arm/plat-omap/include/plat/clock.h
index 6a32ac1..2e2e4c5 100644
--- a/arch/arm/plat-omap/include/plat/clock.h
+++ b/arch/arm/plat-omap/include/plat/clock.h
@@ -188,6 +188,8 @@ extern struct clk *omap_clk_get_by_name(const char *name);
extern const struct clkops clkops_null;
+extern struct clk dummy_ck;
+
/* Clock flags */
#define ENABLE_REG_32BIT (1 << 0) /* Use 32-bit access */
#define CLOCK_IDLE_CONTROL (1 << 1)
--
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