OMAP: DSS2: RFBI: add rfbi_bus_lock (773139f1) · Commits · 戴 / test

drivers/video/omap2/dss/rfbi.c

+16 −0

Original line number	Diff line number	Diff line
		@@ -32,6 +32,7 @@
		#include <linux/ktime.h>
		#include <linux/hrtimer.h>
		#include <linux/seq_file.h>
		#include <linux/semaphore.h>

		#include <video/omapdss.h>
		#include "dss.h"
		@@ -119,6 +120,8 @@ static struct {
		struct completion cmd_done;
		atomic_t cmd_fifo_full;
		atomic_t cmd_pending;

		struct semaphore bus_lock;
		} rfbi;

		struct update_region {
		@@ -146,6 +149,18 @@ static void rfbi_enable_clocks(bool enable)
		dss_clk_disable(DSS_CLK_ICK \| DSS_CLK_FCK);
		}

		void rfbi_bus_lock(void)
		{
		down(&rfbi.bus_lock);
		}
		EXPORT_SYMBOL(rfbi_bus_lock);

		void rfbi_bus_unlock(void)
		{
		up(&rfbi.bus_lock);
		}
		EXPORT_SYMBOL(rfbi_bus_unlock);

		void omap_rfbi_write_command(const void *buf, u32 len)
		{
		rfbi_enable_clocks(1);
		@@ -1022,6 +1037,7 @@ static int omap_rfbihw_probe(struct platform_device *pdev)
		rfbi.pdev = pdev;

		spin_lock_init(&rfbi.cmd_lock);
		sema_init(&rfbi.bus_lock, 1);

		init_completion(&rfbi.cmd_done);
		atomic_set(&rfbi.cmd_fifo_full, 0);

+2 −0

Original line number	Diff line number	Diff line
		@@ -214,6 +214,8 @@ int omap_rfbi_enable_te(bool enable, unsigned line);
		int omap_rfbi_setup_te(enum omap_rfbi_te_mode mode,
		unsigned hs_pulse_time, unsigned vs_pulse_time,
		int hs_pol_inv, int vs_pol_inv, int extif_div);
		void rfbi_bus_lock(void);
		void rfbi_bus_unlock(void);

		/* DSI */
		void dsi_bus_lock(struct omap_dss_device *dssdev);