diff mbox

ARM: tegra: Provide dummy powergate implementation

Message ID 1385405387-27265-1-git-send-email-swarren@wwwdotorg.org (mailing list archive)
State New, archived
Headers show

Commit Message

Stephen Warren Nov. 25, 2013, 6:49 p.m. UTC 
From: Thierry Reding <thierry.reding@gmail.com>

In order to support increased build test coverage for drivers, implement
dummies for the powergate implementation. This will allow the drivers to
be built without requiring support for Tegra to be selected.

This patch solves the following build errors, which can be triggered in
v3.13-rc1 by selecting DRM_TEGRA without ARCH_TEGRA:

drivers/built-in.o: In function `gr3d_remove':
drivers/gpu/drm/tegra/gr3d.c:321: undefined reference to `tegra_powergate_power_off'
drivers/gpu/drm/tegra/gr3d.c:325: undefined reference to `tegra_powergate_power_off'
drivers/built-in.o: In function `gr3d_probe':
drivers/gpu/drm/tegra/gr3d.c:266: undefined reference to `tegra_powergate_sequence_power_up'
drivers/gpu/drm/tegra/gr3d.c:273: undefined reference to `tegra_powergate_sequence_power_up'

Signed-off-by: Thierry Reding <treding@nvidia.com>
[swarren, updated commit description]
Signed-off-by: Stephen Warren <swarren@nvidia.com>
---
This is a fix for 3.13.

 include/linux/tegra-powergate.h | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

Comments

Olof Johansson Nov. 25, 2013, 10:06 p.m. UTC | #1 
On Mon, Nov 25, 2013 at 11:49:47AM -0700, Stephen Warren wrote:
> From: Thierry Reding <thierry.reding@gmail.com>
> 
> In order to support increased build test coverage for drivers, implement
> dummies for the powergate implementation. This will allow the drivers to
> be built without requiring support for Tegra to be selected.
> 
> This patch solves the following build errors, which can be triggered in
> v3.13-rc1 by selecting DRM_TEGRA without ARCH_TEGRA:
> 
> drivers/built-in.o: In function `gr3d_remove':
> drivers/gpu/drm/tegra/gr3d.c:321: undefined reference to `tegra_powergate_power_off'
> drivers/gpu/drm/tegra/gr3d.c:325: undefined reference to `tegra_powergate_power_off'
> drivers/built-in.o: In function `gr3d_probe':
> drivers/gpu/drm/tegra/gr3d.c:266: undefined reference to `tegra_powergate_sequence_power_up'
> drivers/gpu/drm/tegra/gr3d.c:273: undefined reference to `tegra_powergate_sequence_power_up'
> 
> Signed-off-by: Thierry Reding <treding@nvidia.com>
> [swarren, updated commit description]
> Signed-off-by: Stephen Warren <swarren@nvidia.com>
> ---
> This is a fix for 3.13.

Thanks, applied.

-Olof
diff mbox

Patch

diff --git a/include/linux/tegra-powergate.h b/include/linux/tegra-powergate.h
index c98cfa406952..fd4498329c7c 100644
--- a/include/linux/tegra-powergate.h
+++ b/include/linux/tegra-powergate.h
@@ -45,6 +45,7 @@  struct clk;
 
 #define TEGRA_POWERGATE_3D0	TEGRA_POWERGATE_3D
 
+#ifdef CONFIG_ARCH_TEGRA
 int tegra_powergate_is_powered(int id);
 int tegra_powergate_power_on(int id);
 int tegra_powergate_power_off(int id);
@@ -52,5 +53,31 @@  int tegra_powergate_remove_clamping(int id);
 
 /* Must be called with clk disabled, and returns with clk enabled */
 int tegra_powergate_sequence_power_up(int id, struct clk *clk);
+#else
+static inline int tegra_powergate_is_powered(int id)
+{
+	return -ENOSYS;
+}
+
+static inline int tegra_powergate_power_on(int id)
+{
+	return -ENOSYS;
+}
+
+static inline int tegra_powergate_power_off(int id)
+{
+	return -ENOSYS;
+}
+
+static inline int tegra_powergate_remove_clamping(int id)
+{
+	return -ENOSYS;
+}
+
+static inline int tegra_powergate_sequence_power_up(int id, struct clk *clk)
+{
+	return -ENOSYS;
+}
+#endif
 
 #endif /* _MACH_TEGRA_POWERGATE_H_ */