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authorLinus Torvalds <torvalds@linux-foundation.org>2014-01-23 18:36:55 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2014-01-23 18:36:55 -0800
commitf2c73464d7b399cf4e0c601c1c7d7b079080fa52 (patch)
tree902decd0c280757075bce5068fee679e0ccc261e /drivers/gpu/drm/tegra/gr3d.c
parent93abdb7785503c269e73e811f3c7fd23a9243b14 (diff)
parent273c2279ca502267fac40bcaecb35942380c429c (diff)
Merge tag 'cleanup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC cleanups from Olof Johansson: "This is the branch where we usually queue up cleanup efforts, moving drivers out of the architecture directory, header file restructuring, etc. Sometimes they tangle with new development so it's hard to keep it strictly to cleanups. Some of the things included in this branch are: * Atmel SAMA5 conversion to common clock * Reset framework conversion for tegra platforms - Some of this depends on tegra clock driver reworks that are shared with Mike Turquette's clk tree. * Tegra DMA refactoring, which are shared branches with the DMA tree. * Removal of some header files on exynos to prepare for multiplatform" * tag 'cleanup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (169 commits) ARM: mvebu: move Armada 370/XP specific definitions to armada-370-xp.h ARM: mvebu: remove prototypes of non-existing functions from common.h ARM: mvebu: move ARMADA_XP_MAX_CPUS to armada-370-xp.h serial: sh-sci: Rework baud rate calculation serial: sh-sci: Compute overrun_bit without using baud rate algo serial: sh-sci: Remove unused GPIO request code serial: sh-sci: Move overrun_bit and error_mask fields out of pdata serial: sh-sci: Support resources passed through platform resources serial: sh-sci: Don't check IRQ in verify port operation serial: sh-sci: Set the UPF_FIXED_PORT flag serial: sh-sci: Remove duplicate interrupt check in verify port op serial: sh-sci: Simplify baud rate calculation algorithms serial: sh-sci: Remove baud rate calculation algorithm 5 serial: sh-sci: Sort headers alphabetically ARM: EXYNOS: Kill exynos_pm_late_initcall() ARM: EXYNOS: Consolidate selection of PM_GENERIC_DOMAINS for Exynos4 ARM: at91: switch Calao QIL-A9260 board to DT clk: at91: fix pmc_clk_ids data type attriubte PM / devfreq: use inclusion <mach/map.h> instead of <plat/map-s5p.h> ARM: EXYNOS: remove <mach/regs-clock.h> for exynos ...
Diffstat (limited to 'drivers/gpu/drm/tegra/gr3d.c')
-rw-r--r--drivers/gpu/drm/tegra/gr3d.c22
1 files changed, 20 insertions, 2 deletions
diff --git a/drivers/gpu/drm/tegra/gr3d.c b/drivers/gpu/drm/tegra/gr3d.c
index 4cec8f526af7..0cbb24b1ae04 100644
--- a/drivers/gpu/drm/tegra/gr3d.c
+++ b/drivers/gpu/drm/tegra/gr3d.c
@@ -11,6 +11,7 @@
#include <linux/host1x.h>
#include <linux/module.h>
#include <linux/platform_device.h>
+#include <linux/reset.h>
#include <linux/tegra-powergate.h>
#include "drm.h"
@@ -22,6 +23,8 @@ struct gr3d {
struct host1x_channel *channel;
struct clk *clk_secondary;
struct clk *clk;
+ struct reset_control *rst_secondary;
+ struct reset_control *rst;
DECLARE_BITMAP(addr_regs, GR3D_NUM_REGS);
};
@@ -255,15 +258,29 @@ static int gr3d_probe(struct platform_device *pdev)
return PTR_ERR(gr3d->clk);
}
+ gr3d->rst = devm_reset_control_get(&pdev->dev, "3d");
+ if (IS_ERR(gr3d->rst)) {
+ dev_err(&pdev->dev, "cannot get reset\n");
+ return PTR_ERR(gr3d->rst);
+ }
+
if (of_device_is_compatible(np, "nvidia,tegra30-gr3d")) {
gr3d->clk_secondary = devm_clk_get(&pdev->dev, "3d2");
if (IS_ERR(gr3d->clk)) {
dev_err(&pdev->dev, "cannot get secondary clock\n");
return PTR_ERR(gr3d->clk);
}
+
+ gr3d->rst_secondary = devm_reset_control_get(&pdev->dev,
+ "3d2");
+ if (IS_ERR(gr3d->rst_secondary)) {
+ dev_err(&pdev->dev, "cannot get secondary reset\n");
+ return PTR_ERR(gr3d->rst_secondary);
+ }
}
- err = tegra_powergate_sequence_power_up(TEGRA_POWERGATE_3D, gr3d->clk);
+ err = tegra_powergate_sequence_power_up(TEGRA_POWERGATE_3D, gr3d->clk,
+ gr3d->rst);
if (err < 0) {
dev_err(&pdev->dev, "failed to power up 3D unit\n");
return err;
@@ -271,7 +288,8 @@ static int gr3d_probe(struct platform_device *pdev)
if (gr3d->clk_secondary) {
err = tegra_powergate_sequence_power_up(TEGRA_POWERGATE_3D1,
- gr3d->clk_secondary);
+ gr3d->clk_secondary,
+ gr3d->rst_secondary);
if (err < 0) {
dev_err(&pdev->dev,
"failed to power up secondary 3D unit\n");