The PWM1 was used for the backlight called pwm-backlight.0.And now i want to move the backlight function to PWM2.I have modified 3 source file：
1.clock.c (change CG8 to CG9)
/*
* We use pwm1 to drive LVDS panel pwm backlight
* to support bootloader splashimage by default,
* so we need to enable the clock to keep the
* backlight on.
*/
(machine_is_mx6q_sabresd() ?
(3 << MXC_CCM_CCGRx_CG9_OFFSET) : 0) |
#endif
1 << MXC_CCM_CCGRx_CG6_OFFSET |
1 << MXC_CCM_CCGRx_CG4_OFFSET, MXC_CCM_CCGR4);
__raw_writel(1 << MXC_CCM_CCGRx_CG0_OFFSET, MXC_CCM_CCGR5);
__raw_writel(0, MXC_CCM_CCGR6);
/* S/PDIF */
clk_set_parent(&spdif0_clk[0], &pll3_pfd_454M);
2.board-mx6dl_sabresd.h
/* DISP_PWM */
MX6DL_PAD_SD1_DAT2__PWM2_PWMO,
3.board-mx6dl_sabresd.c
static struct platform_pwm_backlight_data mx6_sabresd_pwm_backlight_data =
{
.pwm_id = 1,
.max_brightness = 248,
.dft_brightness = 128,
.pwm_period_ns = 50000,
};
imx6q_add_mxc_pwm_backlight(1, &mx6_sabresd_pwm_backlight_data);
And then i cannot detect the wave via an oscilloscope，are there any other files needed to be set?
