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Commit ed625b91 authored by Omar Ramirez Luna's avatar Omar Ramirez Luna Committed by Greg Kroah-Hartman
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staging: tidspbridge: request dmtimer clocks on init 



Given that dm timer framework doesn't support request of clocks
by soft | hard irqs because some recent changes, tidspbridge needs
to request its clocks on init and enable/disable them on demand.

This was first seen on 3.2-rc1.

Signed-off-by: default avatarOmar Ramirez Luna <omar.ramirez@ti.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 0a7e22e6

drivers/staging/tidspbridge/core/dsp-clock.c

+12 −3
Original line number Diff line number Diff line
@@ -54,6 +54,7 @@ 


/* Bridge GPT id (1 - 4), DM Timer id (5 - 8) */

#define DMT_ID(id) ((id) + 4)

#define DM_TIMER_CLOCKS		4



/* Bridge MCBSP id (6 - 10), OMAP Mcbsp id (0 - 4) */

#define MCBSP_ID(id) ((id) - 6)
@@ -114,8 +115,13 @@ static s8 get_clk_type(u8 id) 
 */

void dsp_clk_exit(void)

{

	int i;



	dsp_clock_disable_all(dsp_clocks);



	for (i = 0; i < DM_TIMER_CLOCKS; i++)

		omap_dm_timer_free(timer[i]);



	clk_put(iva2_clk);

	clk_put(ssi.sst_fck);

	clk_put(ssi.ssr_fck);
@@ -130,9 +136,13 @@ void dsp_clk_exit(void) 
void dsp_clk_init(void)

{

	static struct platform_device dspbridge_device;

	int i, id;



	dspbridge_device.dev.bus = &platform_bus_type;



	for (i = 0, id = 5; i < DM_TIMER_CLOCKS; i++, id++)

		timer[i] = omap_dm_timer_request_specific(id);



	iva2_clk = clk_get(&dspbridge_device.dev, "iva2_ck");

	if (IS_ERR(iva2_clk))

		dev_err(bridge, "failed to get iva2 clock %p\n", iva2_clk);
@@ -204,8 +214,7 @@ int dsp_clk_enable(enum dsp_clk_id clk_id) 
		clk_enable(iva2_clk);

		break;

	case GPT_CLK:

		timer[clk_id - 1] =

				omap_dm_timer_request_specific(DMT_ID(clk_id));

		status = omap_dm_timer_start(timer[clk_id - 1]);

		break;

#ifdef CONFIG_OMAP_MCBSP

	case MCBSP_CLK:
@@ -281,7 +290,7 @@ int dsp_clk_disable(enum dsp_clk_id clk_id) 
		clk_disable(iva2_clk);

		break;

	case GPT_CLK:

		omap_dm_timer_free(timer[clk_id - 1]);

		status = omap_dm_timer_stop(timer[clk_id - 1]);

		break;

#ifdef CONFIG_OMAP_MCBSP

	case MCBSP_CLK: