talos-obmc-linux/drivers/clk, branch dev-4.13

clk: npcm7xx: fix return value check in npcm7xx_clk_init()

2018-05-18T08:34:22+00:00

In case of error, the function ioremap() returns NULL pointer not ERR_PTR(). The IS_ERR() test in the return value check should be replaced with NULL test. OpenBMC-Staging-Count: 1 Fixes: fcfd14369856 ("clk: npcm7xx: add clock controller") Signed-off-by: Wei Yongjun Signed-off-by: Stephen Boyd Signed-off-by: Joel Stanley

clk: aspeed: Add 24MHz fixed clock

2018-05-18T07:51:50+00:00

Add a 24MHz fixed clock that is provided by the input oscillator. This clock will be used for certain devices, e.g. pwm. OpenBMC-Staging-Count: 1 Signed-off-by: Lei YU Signed-off-by: Joel Stanley

clk: aspeed: Fix reset assert logic

2018-04-26T02:14:59+00:00

This commit fixes a bug in aspeed_reset_assert() which determines the second reset register using condition. OpenBMC-Staging-Count: 1 Fixes: 9e3efb97c78f ("clk: aspeed: Support second reset register") Signed-off-by: Jae Hyun Yoo Signed-off-by: Joel Stanley

clk: aspeed: Support second reset register

2018-04-19T04:10:22+00:00

The ast2500 has an additional reset register that contains resets not present in the ast2400. This enables support for this register, and adds the one reset line that is controlled by it. OpenBMC-Staging-Count: 1 Reviewed-by: Andrew Jeffery Signed-off-by: Joel Stanley

clk: npcm7xx: add clock controller

2018-04-11T04:02:30+00:00

Nuvoton Poleg BMC NPCM7XX contains an integrated clock controller, which generates and supplies clocks to all modules within the BMC. OpenBMC-Staging-Count: 1 Signed-off-by: Tali Perry Signed-off-by: Joel Stanley

clk: aspeed: Mark bclk (PCIe) and dclk (VGA) as critical

2018-03-28T04:25:36+00:00

This is used by the host to talk to the BMC's PCIe slave device. The BMC is not involved, but the clock needs to be enabled so the host can use the device. OpenBMC-Staging-Count: 1 Acked-by: Andrew Jeffery Tested-by: Lei YU Signed-off-by: Lei YU Signed-off-by: Joel Stanley

clk: aspeed: Fix is_enabled for certain clocks

2018-03-13T05:45:18+00:00

Some of the Aspeed clocks are disabled by setting the relevant bit in the "clock stop control" register to one, while others are disabled by setting their bit to zero. The driver already uses a flag per gate to identify this behavior, but doesn't apply it in the clock is_enabled function. Use the existing gate flag to correctly return whether or not a clock is enabled in the aspeed_clk_is_enabled function. OpenBMC-Staging-Count: 1 Signed-off-by: Eddie James

clk: aspeed: Prevent reset if clock is enabled

2018-03-08T05:49:37+00:00

According to the ASPEED specification, the reset and enable sequence should be done when the clock is stopped. The specification doesn't define behavior if the reset is done while the clock is enabled. From testing on the AST2500 and AST2400, the LPC Controller has problems if the clock is reset while enabled. Therefore, check whether the clock is enabled or not before performing the reset and enable sequence in the ASPEED clock driver. OpenBMC-Staging-Count: 1 Signed-off-by: Eddie James Signed-off-by: Joel Stanley

clk: aspeed: Handle inverse polarity of USB port 1 clock gate

2018-02-20T05:33:56+00:00

The USB port 1 clock gate control has an inversed polarity from all the other clock gates in the chip. This makes the aspeed_clk_{enable,disable} functions honor the flag CLK_GATE_SET_TO_DISABLE and set that flag appropriately so it's set for all clocks except USB port 1. Signed-off-by: Benjamin Herrenschmidt Reviewed-by: Joel Stanley Signed-off-by: Stephen Boyd (cherry picked from commit 6671507f0fbd582b4003f837ab791d03ade8e0f4) Signed-off-by: Joel Stanley

clk: aspeed: Fix return value check in aspeed_cc_init()

2018-02-20T05:33:56+00:00

In case of error, the function of_iomap() returns NULL pointer not ERR_PTR(). The IS_ERR() test in the return value check should be replaced with NULL test. Fixes: a2e230c7b2ea ("clk: Add clock driver for ASPEED BMC SoCs") Signed-off-by: Wei Yongjun Signed-off-by: Stephen Boyd (cherry picked from commit accf475a5ece972af58c81e0742035ed90ad41d2) Signed-off-by: Joel Stanley