diff options
| author | Elaine Zhang <zhangqing@rock-chips.com> | 2021-05-11 17:07:26 +0800 |
|---|---|---|
| committer | Heiko Stuebner <heiko@sntech.de> | 2021-05-11 12:22:29 +0200 |
| commit | 23029150a05b59ebacca6dd76f6c14dc67a95877 (patch) | |
| tree | c05f52c3c47c6ab6821b3c7a3c1f656853dc7287 /drivers/clk/rockchip | |
| parent | 6efb943b8616ec53a5e444193dccf1af9ad627b5 (diff) | |
| download | linux-23029150a05b59ebacca6dd76f6c14dc67a95877.tar.bz2 | |
clk: rockchip: Optimize PLL table memory usage
Before the change: The sizeof rk3568_pll_rates = 2544
Use union: The sizeof rk3568_pll_rates = 1696
In future Soc, more PLL types will be added, and the
rockchip_pll_rate_table will add more members,
and the space savings will be even more pronounced
by using union.
Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Link: https://lore.kernel.org/r/20210511090726.15146-1-zhangqing@rock-chips.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Diffstat (limited to 'drivers/clk/rockchip')
| -rw-r--r-- | drivers/clk/rockchip/clk.h | 29 |
1 files changed, 18 insertions, 11 deletions
diff --git a/drivers/clk/rockchip/clk.h b/drivers/clk/rockchip/clk.h index 571cee7bbfdc..7aa45cc70287 100644 --- a/drivers/clk/rockchip/clk.h +++ b/drivers/clk/rockchip/clk.h @@ -271,17 +271,24 @@ struct rockchip_clk_provider { struct rockchip_pll_rate_table { unsigned long rate; - unsigned int nr; - unsigned int nf; - unsigned int no; - unsigned int nb; - /* for RK3036/RK3399 */ - unsigned int fbdiv; - unsigned int postdiv1; - unsigned int refdiv; - unsigned int postdiv2; - unsigned int dsmpd; - unsigned int frac; + union { + struct { + /* for RK3066 */ + unsigned int nr; + unsigned int nf; + unsigned int no; + unsigned int nb; + }; + struct { + /* for RK3036/RK3399 */ + unsigned int fbdiv; + unsigned int postdiv1; + unsigned int refdiv; + unsigned int postdiv2; + unsigned int dsmpd; + unsigned int frac; + }; + }; }; /** |