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* spmi: Fix sandbox spmi driver memory corruptionMateusz Kulikowski2016-04-111-1/+2
| | | | | | | | | | | There is off-by-one error in sandbox_emul_gpio that causes segfault of certain tests. EMUL_GPIO_REG_END is the address of last valid (emulated) register. This patch fixed this (by adding one more element to emulated register array). Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com> Tested-by: Stephen Warren <swarren@nvidia.com>
* drivers: spmi: Add support for Qualcomm SPMI bus driverMateusz Kulikowski2016-04-013-1/+196
| | | | | | | | Support SPMI arbiter on Qualcomm Snapdragon devices. Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Tested-by: Simon Glass <sjg@chromium.org>
* spmi: Add sandbox test driverMateusz Kulikowski2016-04-013-0/+166
| | | | | | | | This patch adds emulated spmi bus controller with part of pm8916 pmic on it to sandbox and tests validating SPMI uclass. Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
* drivers: Add SPMI bus uclassMateusz Kulikowski2016-04-013-0/+65
Qualcom processors use proprietary bus to talk with PMIC devices - SPMI (System Power Management Interface). On wiring level it is similar to I2C, but on protocol level, it's multi-master and has simple autodetection capabilities. This commit adds simple uclass that provides bus read/write interface. Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Tested-by: Simon Glass <sjg@chromium.org>
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