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mx7: clock: Use 60MHz for the I2C clocks

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When an I2C clock is enabled inside enable_i2c_clk() the clock rate is
configured as PLL_SYS_MAIN_120M_CLK / 2 = 60MHz.

Currently, the I2C clock is retrieved from I2C1_CLK_ROOT, which
may not be the one that was enabled.

As there is no clock driver for the imx7d, it is better to return 60MHz
for the I2C clock.

This provides a workaround for the imx7d-pico board, where I2C4 is
connected to the PMIC.

With this change, it is possible to convert the imx7d-pico board
to DM_I2C and DM_PMIC.

Signed-off-by: Fabio Estevam <festevam@denx.de>
This commit is contained in:
Fabio Estevam
2023-01-03 10:19:39 -03:00
committed by Stefano Babic
parent 3f7afddc9c
commit c4d79448b0
1 changed files with 1 additions and 1 deletions
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2
arch/arm/mach-imx/mx7/clock.c
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@@ -502,7 +502,7 @@ unsigned int mxc_get_clock(enum mxc_clock clk)
case MXC_IPG_CLK:
return get_ipg_clk();
case MXC_I2C_CLK:
return get_root_clk(I2C1_CLK_ROOT);
return 60000000;
case MXC_UART_CLK:
return get_root_clk(UART1_CLK_ROOT);
case MXC_CSPI_CLK: