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drm/tegra: use reset framework

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Tegra's clock driver now provides an implementation of the common
reset API (include/linux/reset.h). Use this instead of the old Tegra-
specific API; that will soon be removed.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-By: Terje Bergstrom <tbergstrom@nvidia.com>
This commit is contained in:
Stephen Warren
2013-11-06 16:20:54 -07:00
parent 3127a6b2a2
commit ca48080a03
5 changed files with 39 additions and 6 deletions
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16
drivers/gpu/drm/tegra/gr3d.c
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@@ -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);
};
@@ -255,12 +258,25 @@ 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);