On Thu, 2008-11-20 at 11:11 -0800, David Brownell wrote: > On Thursday 20 November 2008, Stanley.Miao wrote: > > - omap_set_gpio_direction(LCD_PANEL_QVGA_GPIO, 0); > > - omap_set_gpio_direction(LCD_PANEL_RESET_GPIO, 0); > > gpio_direction_output(LCD_PANEL_ENABLE_GPIO, 0); > > gpio_direction_output(LCD_PANEL_BACKLIGHT_GPIO, 0); > > Nothing does > > gpio_request(LCD_PANEL_QVGA_GPIO, "qvga something"); > gpio_request(LCD_PANEL_RESET_GPIO, "lcd reset"); > Accepted, change omap_request_gpio() to gpio_request(). > And by removing the initial direction setting call (above), > behavior of at least the reset line changes: it's no longer > pullsed low. > > It'd be better to change the direction setting calls above > (setting an initial low value), and then make the calls > below use gpio_set_value(). > > > > #ifdef CONFIG_FB_OMAP_LCD_VGA > > - omap_set_gpio_dataout(LCD_PANEL_QVGA_GPIO, 0); > > + gpio_direction_output(LCD_PANEL_QVGA_GPIO, 0); > > #else > > - omap_set_gpio_dataout(LCD_PANEL_QVGA_GPIO, 1); > > + gpio_direction_output(LCD_PANEL_QVGA_GPIO, 1); > > #endif > > - omap_set_gpio_dataout(LCD_PANEL_RESET_GPIO, 1); > > + gpio_direction_output(LCD_PANEL_RESET_GPIO, 1); > > Use gpio_set_value() to replace omap_set_gpio_dataout(), except > when initializing. The reset pin *was* being toggled... These actions are in init function. so keep omap_set_gpio_dataout() in place. Thanks for your review, I will resend it. Stanley. > > - Dave > > -- > To unsubscribe from this list: send the line "unsubscribe linux-omap" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
