From 1963a2afc81afe6d85e7a12538b74a9919d958ae Mon Sep 17 00:00:00 2001 From: Gregory Bean Date: Sat, 28 Aug 2010 10:05:44 -0700 Subject: msm: add gpiomux api for gpio multiplex & configuration. Add the 'gpiomux' api, which addresses the following shortcomings of existing tlmm api: - gpio power-collapse, which is managed by a peripheral processor on other targets, must be managed by the application processor on the 8x60. - The enable/disable flag of the legacy gpio_tlmm_config api is not applicable on the 8x60, and causes confusion. - The gpio 'direction' bits are meaningless for all func_sel configurations except for generic-gpio mode (func_sel 0), in which case the gpio_direction_* functions should be used. Having these bits in the tlmm api leads to confusion and misuse of the gpiolib api, and they have been removed in gpiomux. - The functional api of the legacy system ran contrary to the typical use-case, which is a single massive configuration at boot. Rather than forcing hundreds of 'config' function calls, the new api allows data to be configured with a single table. gpiomux_get and gpiomux_put are meant to be called automatically when gpio_request and gpio_free are called, giving automatic gpiomux/tlmm control to those drivers/lines with simple power profiles - in the simplest cases, an entry in the gpiomux table and the correct usage of gpiolib is all that is required to get proper gpio power control. Signed-off-by: Gregory Bean Signed-off-by: Daniel Walker --- arch/arm/mach-msm/Kconfig | 2 ++ 1 file changed, 2 insertions(+) (limited to 'arch/arm/mach-msm/Kconfig') diff --git a/arch/arm/mach-msm/Kconfig b/arch/arm/mach-msm/Kconfig index 47264a76eeb..4e79580af62 100644 --- a/arch/arm/mach-msm/Kconfig +++ b/arch/arm/mach-msm/Kconfig @@ -106,4 +106,6 @@ config MSM_SMD_PKG3 config MSM_SMD bool +config MSM_V2_TLMM + bool endif -- cgit v1.2.3-70-g09d2