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clk: tegra20: fix gcc-7 constant overflow warning 

[ Upstream commit b4a2adbf35 ]

Older gcc versions get confused by comparing a u32 value to a negative
constant in a switch()/case block:

drivers/clk/tegra/clk-tegra20.c: In function 'tegra20_clk_measure_input_freq':
drivers/clk/tegra/clk-tegra20.c:581:2: error: case label does not reduce to an integer constant
  case OSC_CTRL_OSC_FREQ_12MHZ:
  ^~~~
drivers/clk/tegra/clk-tegra20.c:593:2: error: case label does not reduce to an integer constant
  case OSC_CTRL_OSC_FREQ_26MHZ:

Make the constants unsigned instead.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20230227085914.2560984-1-arnd@kernel.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Arnd Bergmann 2023-02-27 09:59:10 +01:00 committed by Greg Kroah-Hartman
parent 39c6312009
commit 976126f2de
1 changed files with 13 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
drivers/clk/tegra/clk-tegra20.c
View File

@ -21,24 +21,24 @@
#define MISC_CLK_ENB 0x48
#define OSC_CTRL 0x50
#define OSC_CTRL_OSC_FREQ_MASK (3<<30)
#define OSC_CTRL_OSC_FREQ_13MHZ (0<<30)
#define OSC_CTRL_OSC_FREQ_19_2MHZ (1<<30)
#define OSC_CTRL_OSC_FREQ_12MHZ (2<<30)
#define OSC_CTRL_OSC_FREQ_26MHZ (3<<30)
#define OSC_CTRL_MASK (0x3f2 | OSC_CTRL_OSC_FREQ_MASK)
#define OSC_CTRL_OSC_FREQ_MASK (3u<<30)
#define OSC_CTRL_OSC_FREQ_13MHZ (0u<<30)
#define OSC_CTRL_OSC_FREQ_19_2MHZ (1u<<30)
#define OSC_CTRL_OSC_FREQ_12MHZ (2u<<30)
#define OSC_CTRL_OSC_FREQ_26MHZ (3u<<30)
#define OSC_CTRL_MASK (0x3f2u | OSC_CTRL_OSC_FREQ_MASK)
#define OSC_CTRL_PLL_REF_DIV_MASK (3<<28)
#define OSC_CTRL_PLL_REF_DIV_1 (0<<28)
#define OSC_CTRL_PLL_REF_DIV_2 (1<<28)
#define OSC_CTRL_PLL_REF_DIV_4 (2<<28)
#define OSC_CTRL_PLL_REF_DIV_MASK (3u<<28)
#define OSC_CTRL_PLL_REF_DIV_1 (0u<<28)
#define OSC_CTRL_PLL_REF_DIV_2 (1u<<28)
#define OSC_CTRL_PLL_REF_DIV_4 (2u<<28)
#define OSC_FREQ_DET 0x58
#define OSC_FREQ_DET_TRIG (1<<31)
#define OSC_FREQ_DET_TRIG (1u<<31)
#define OSC_FREQ_DET_STATUS 0x5c
#define OSC_FREQ_DET_BUSY (1<<31)
#define OSC_FREQ_DET_CNT_MASK 0xFFFF
#define OSC_FREQ_DET_BUSYu (1<<31)
#define OSC_FREQ_DET_CNT_MASK 0xFFFFu
#define TEGRA20_CLK_PERIPH_BANKS 3