Abhijeet Dharmapurikar 57102ad792 spmi: pmic_arb: block access of invalid read and writes ... The system crashes due to bad access when reading from an non configured peripheral and when writing to peripheral which is not owned by current ee. This patch verifies ownership to avoid crashing on write. For reads, since the forward mapping table, data_channel->ppid, is towards the end of the block, we use the core size to figure the max number of ppids supported. The table starts at an offset of 0x800 within the block, so size - 0x800 will give us the area used by the table. Since each table is 4 bytes long (core_size - 0x800) / 4 will gives us the number of data_channel supported. This new protection is functional on hw v2. Signed-off-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org> Signed-off-by: Kiran Gunda <kgunda@codeaurora.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2017-06-03 19:05:47 +09:00
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Kconfig	spmi: Select IRQ_DOMAIN instead of depend on it	2015-08-05 12:27:09 -07:00
Makefile	spmi: Add MSM PMIC Arbiter SPMI controller	2014-02-15 11:55:28 -08:00
spmi-pmic-arb.c	spmi: pmic_arb: block access of invalid read and writes	2017-06-03 19:05:47 +09:00
spmi.c	spmi: do not use bus internal data	2016-04-30 14:15:56 -07:00