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Commit 82ba2c2a authored by Jarkko Nikula's avatar Jarkko Nikula Committed by Mark Brown
Browse files

spi: pxa2xx: Make LPSS SPI general register optional 



General register located in LPSS SPI private register space is not found in
upcoming Intel LPSS platforms. Access it conditionally depending is it
defined in configuration.

Signed-off-by: default avatarJarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent dccf7369

drivers/spi/spi-pxa2xx.c

+7 −3
Original line number Diff line number Diff line
@@ -245,9 +245,13 @@ static void lpss_ssp_setup(struct driver_data *drv_data) 
	if (drv_data->master_info->enable_dma) {

		__lpss_ssp_write_priv(drv_data, config->reg_ssp, 1);



		value = __lpss_ssp_read_priv(drv_data, config->reg_general);

		if (config->reg_general >= 0) {

			value = __lpss_ssp_read_priv(drv_data,

						     config->reg_general);

			value |= GENERAL_REG_RXTO_HOLDOFF_DISABLE;

		__lpss_ssp_write_priv(drv_data, config->reg_general, value);

			__lpss_ssp_write_priv(drv_data,

					      config->reg_general, value);

		}

	}

}