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Commit 026acd5f authored by Timur Tabi's avatar Timur Tabi Committed by David S. Miller
Browse files

net: qcom/emac: don't try to claim clocks on ACPI systems 



On ACPI systems, clocks are not available to drivers directly.  They are
handled exclusively by ACPI and/or firmware, so there is no clock driver.
Calls to clk_get() always fail, so we should not even attempt to claim
any clocks on ACPI systems.

Signed-off-by: default avatarTimur Tabi <timur@codeaurora.org>
Reviewed-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent b822ee6c

drivers/net/ethernet/qualcomm/emac/emac.c

+9 −0
Original line number Diff line number Diff line
@@ -460,6 +460,12 @@ static int emac_clks_phase1_init(struct platform_device *pdev, 
{

	int ret;



	/* On ACPI platforms, clocks are controlled by firmware and/or

	 * ACPI, not by drivers.

	 */

	if (has_acpi_companion(&pdev->dev))

		return 0;



	ret = emac_clks_get(pdev, adpt);

	if (ret)

		return ret;
@@ -485,6 +491,9 @@ static int emac_clks_phase2_init(struct platform_device *pdev, 
{

	int ret;



	if (has_acpi_companion(&pdev->dev))

		return 0;



	ret = clk_set_rate(adpt->clk[EMAC_CLK_TX], 125000000);

	if (ret)

		return ret;