OpenCloudOS-Kernel/drivers/clk/imx
Emil Lundmark 5c2f117a22 clk: imx: fix integer overflow in AV PLL round rate
Since 'parent_rate * mfn' may overflow 32 bits, the result should be
stored using 64 bits.

The problem was discovered when trying to set the rate of the audio PLL
(pll4_post_div) on an i.MX6Q. The desired rate was 196.608 MHz, but
the actual rate returned was 192.000570 MHz. The round rate function should
have been able to return 196.608 MHz, i.e., the desired rate.

Fixes: ba7f4f557e ("clk: imx: correct AV PLL rate formula")
Cc: Anson Huang <b20788@freescale.com>
Signed-off-by: Emil Lundmark <emil@limesaudio.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Acked-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-11-01 17:07:54 -07:00
..
Makefile clk: imx: add imx6ul clk tree support 2015-07-14 15:02:13 +08:00
clk-busy.c clk: move the common clock's to_clk_*(_hw) macros to clk-provider.h 2016-01-29 12:59:50 -08:00
clk-cpu.c clk: imx: clk-cpu: Include "clk.h" header file 2015-06-03 14:49:34 +08:00
clk-fixup-div.c clk: move the common clock's to_clk_*(_hw) macros to clk-provider.h 2016-01-29 12:59:50 -08:00
clk-fixup-mux.c clk: move the common clock's to_clk_*(_hw) macros to clk-provider.h 2016-01-29 12:59:50 -08:00
clk-gate-exclusive.c clk: move the common clock's to_clk_*(_hw) macros to clk-provider.h 2016-01-29 12:59:50 -08:00
clk-gate2.c clk: imx: clk-gate2: allow custom gate configuration 2016-03-31 17:01:55 +08:00
clk-imx1.c ARM: i.MX: Remove i.MX1 non-DT support 2016-08-09 22:47:26 +08:00
clk-imx6q.c clk: imx6: initialize GPU clocks 2016-09-20 16:57:15 -07:00
clk-imx6sl.c clk: imx: fix pll clock parents 2016-06-12 21:21:41 +08:00
clk-imx6sx.c clk: imx: fix pll clock parents 2016-06-12 21:21:41 +08:00
clk-imx6ul.c clk: imx6ul: fix gpt2 clock names 2016-06-16 09:05:55 +08:00
clk-imx7d.c clk: imx7d: Add PLL_AUDIO_TEST_DIV/POST_DIV clocks 2016-08-30 14:58:15 -07:00
clk-imx21.c clk: i.MX: Remove clk.h include 2015-07-20 10:52:49 -07:00
clk-imx25.c clk: imx25: Remove osc clock from driver 2015-11-25 11:49:42 +08:00
clk-imx27.c clk: imx27: add missing of_node_put 2015-10-21 16:16:34 -07:00
clk-imx31.c clk: imx31: add missing of_node_put 2015-10-21 16:16:34 -07:00
clk-imx35.c ARM: clk-imx35: annotate clk enum with number values 2016-09-14 11:28:04 -07:00
clk-imx51-imx53.c clk: imx53: Add clocks configuration 2016-09-20 16:52:06 -07:00
clk-pfd.c clk: i.MX: Remove clk.h include 2015-07-20 10:52:49 -07:00
clk-pllv1.c imx/clk-pllv1: fix wrong do_div() usage 2015-11-30 12:58:35 -08:00
clk-pllv2.c imx/clk-pllv2: fix wrong do_div() usage 2015-11-30 12:58:38 -08:00
clk-pllv3.c clk: imx: fix integer overflow in AV PLL round rate 2016-11-01 17:07:54 -07:00
clk-vf610.c clk: imx: vf610: Disable automatic clock gating for lpuart in LPSTOP mode 2016-07-08 11:38:17 -07:00
clk.c clk: imx: add common logic to detect early UART usage 2015-09-25 21:58:41 -07:00
clk.h clk: imx: Introduce clk_register_gate2() 2016-08-19 12:53:41 -07:00