Bhupesh Sharma 4047b9db1a net: stmmac: Add platform level debug register dump feature ... dwmac-qcom-ethqos currently exposes a mechanism to dump rgmii registers after the 'stmmac_dvr_probe()' returns. However with commit 5ec5582343 ("net: stmmac: add clocks management for gmac driver"), we now let 'pm_runtime_put()' disable the clocks before returning from 'stmmac_dvr_probe()'. This causes a crash when 'rgmii_dump()' register dumps are enabled, as the clocks are already off. Since other dwmac drivers (possible future users as well) might require a similar register dump feature, introduce a platform level callback to allow the same. This fixes the crash noticed while enabling rgmii_dump() dumps in dwmac-qcom-ethqos driver as well. It also allows future changes to keep a invoking the register dump callback from the correct place inside 'stmmac_dvr_probe()'. Fixes: 5ec5582343 ("net: stmmac: add clocks management for gmac driver") Cc: Joakim Zhang <qiangqing.zhang@nxp.com> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: Bhupesh Sharma <bhupesh.sharma@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>		2021-11-30 11:57:58 +00:00
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stmmac	net: stmmac: Add platform level debug register dump feature	2021-11-30 11:57:58 +00:00
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