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More OMAP hwmod and clock fixes for v3.10-rc. Fixes the AM33xx UART2.

Browse source 
Also fixes some CCF-related breakage on OMAP36xx/37xx, affecting DSS
 at the very least.
 
 Basic test logs for this branch are here:
 
 http://www.pwsan.com/omap/testlogs/fixes_b_v3.10-rc/20130606093449/
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Merge tag 'omap-fixes-b-for-3.10-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into omap-for-v3.10/fixes

More OMAP hwmod and clock fixes for v3.10-rc.  Fixes the AM33xx UART2.
Also fixes some CCF-related breakage on OMAP36xx/37xx, affecting DSS
at the very least.

Basic test logs for this branch are here:

http://www.pwsan.com/omap/testlogs/fixes_b_v3.10-rc/20130606093449/
This commit is contained in:
Tony Lindgren 2013-06-07 15:06:18 -07:00
commit 03c0d27119
2 changed files with 17 additions and 10 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

18
arch/arm/mach-omap2/clock36xx.c
View file

@ -20,11 +20,12 @@
#include <linux/kernel.h>
#include <linux/clk.h>
#include <linux/clk-provider.h>
#include <linux/io.h>
#include "clock.h"
#include "clock36xx.h"
#define to_clk_divider(_hw) container_of(_hw, struct clk_divider, hw)
/**
* omap36xx_pwrdn_clk_enable_with_hsdiv_restore - enable clocks suffering
@ -39,29 +40,28 @@
*/
int omap36xx_pwrdn_clk_enable_with_hsdiv_restore(struct clk_hw *clk)
{
struct clk_hw_omap *parent;
struct clk_divider *parent;
struct clk_hw *parent_hw;
u32 dummy_v, orig_v, clksel_shift;
u32 dummy_v, orig_v;
int ret;
/* Clear PWRDN bit of HSDIVIDER */
ret = omap2_dflt_clk_enable(clk);
parent_hw = __clk_get_hw(__clk_get_parent(clk->clk));
parent = to_clk_hw_omap(parent_hw);
parent = to_clk_divider(parent_hw);
/* Restore the dividers */
if (!ret) {
clksel_shift = __ffs(parent->clksel_mask);
orig_v = __raw_readl(parent->clksel_reg);
orig_v = __raw_readl(parent->reg);
dummy_v = orig_v;
/* Write any other value different from the Read value */
dummy_v ^= (1 << clksel_shift);
__raw_writel(dummy_v, parent->clksel_reg);
dummy_v ^= (1 << parent->shift);
__raw_writel(dummy_v, parent->reg);
/* Write the original divider */
__raw_writel(orig_v, parent->clksel_reg);
__raw_writel(orig_v, parent->reg);
}
return ret;

9
arch/arm/mach-omap2/omap_hwmod_33xx_data.c
View file

@ -2007,6 +2007,13 @@ static struct omap_hwmod am33xx_uart1_hwmod = {
},
};
/* uart2 */
static struct omap_hwmod_dma_info uart2_edma_reqs[] = {
{ .name = "tx", .dma_req = 28, },
{ .name = "rx", .dma_req = 29, },
{ .dma_req = -1 }
};
static struct omap_hwmod_irq_info am33xx_uart2_irqs[] = {
{ .irq = 73 + OMAP_INTC_START, },
{ .irq = -1 },
@ -2018,7 +2025,7 @@ static struct omap_hwmod am33xx_uart2_hwmod = {
.clkdm_name = "l4ls_clkdm",
.flags = HWMOD_SWSUP_SIDLE_ACT,
.mpu_irqs = am33xx_uart2_irqs,
.sdma_reqs = uart1_edma_reqs,
.sdma_reqs = uart2_edma_reqs,
.main_clk = "dpll_per_m2_div4_ck",
.prcm = {
.omap4 = {