When CONFIG_SMP is disabled, the tegra clk driver now fails to build:
drivers/clk/tegra/clk-tegra30.c: In function 'tegra30_cpu_rail_off_ready':
drivers/clk/tegra/clk-tegra30.c:1151:19: error: implicit declaration of function 'tegra_pmc_cpu_is_powered'; did you mean 'tegra_powergate_is_powered'? [-Werror=implicit-function-declaration]
cpu_pwr_status = tegra_pmc_cpu_is_powered(1) ||
I don't know if tegra works without CONFIG_SMP, but we can get it to
build by making the calls conditional, and removing the pointless
ifdef around the declaration. The assumption now is that in a
non-SMP system, the secondary CPUs are always disabled.
Fixes: 61866523ed6e ("clk: tegra30: Use Tegra CPU powergate helper function")
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
---
Not sure if this is the best solution. If you think it's not, please
submit a different fix.
---
drivers/clk/tegra/clk-tegra30.c | 10 +++++++---
include/soc/tegra/pmc.h | 2 --
2 files changed, 7 insertions(+), 5 deletions(-)
diff --git a/drivers/clk/tegra/clk-tegra30.c b/drivers/clk/tegra/clk-tegra30.c
index fa8d573ac626..1505185936f4 100644
--- a/drivers/clk/tegra/clk-tegra30.c
+++ b/drivers/clk/tegra/clk-tegra30.c
@@ -1148,9 +1148,13 @@ static bool tegra30_cpu_rail_off_ready(void)
cpu_rst_status = readl(clk_base +
TEGRA30_CLK_RST_CONTROLLER_CPU_CMPLX_STATUS);
- cpu_pwr_status = tegra_pmc_cpu_is_powered(1) ||
- tegra_pmc_cpu_is_powered(2) ||
- tegra_pmc_cpu_is_powered(3);
+
+ if (IS_ENABLED(CONFIG_SMP))
+ cpu_pwr_status = tegra_pmc_cpu_is_powered(1) ||
+ tegra_pmc_cpu_is_powered(2) ||
+ tegra_pmc_cpu_is_powered(3);
+ else
+ cpu_pwr_status = 0;
if (((cpu_rst_status & 0xE) != 0xE) || cpu_pwr_status)
return false;
diff --git a/include/soc/tegra/pmc.h b/include/soc/tegra/pmc.h
index fd816f6aa9cc..a9db1b501de1 100644
--- a/include/soc/tegra/pmc.h
+++ b/include/soc/tegra/pmc.h
@@ -26,11 +26,9 @@
struct clk;
struct reset_control;
-#ifdef CONFIG_SMP
bool tegra_pmc_cpu_is_powered(unsigned int cpuid);
int tegra_pmc_cpu_power_on(unsigned int cpuid);
int tegra_pmc_cpu_remove_clamping(unsigned int cpuid);
-#endif /* CONFIG_SMP */
/*
* powergate and I/O rail APIs
--
2.20.0
