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Date: Tue, 10 Aug 2021 14:26:57 -0500 From: Alex Elder <elder@...aro.org> To: davem@...emloft.net, kuba@...nel.org Cc: bjorn.andersson@...aro.org, evgreen@...omium.org, cpratapa@...eaurora.org, subashab@...eaurora.org, elder@...nel.org, netdev@...r.kernel.org, linux-kernel@...r.kernel.org Subject: [PATCH net-next 0/7] net: ipa: use runtime PM reference counting This series does further rework of the IPA clock code so that we rely on some of the core runtime power management code (including its referencing counting) instead. The first patch makes ipa_clock_get() act like pm_runtime_get_sync(). The second patch makes system suspend occur regardless of the current reference count value, which is again more like how the runtime PM core code behaves. The third patch creates functions to encapsulate all hardware suspend and resume activity. The fourth uses those functions as the ->runtime_suspend and ->runtime_resume power callbacks. With that in place, ipa_clock_get() and ipa_clock_put() are changed to use runtime PM get and put functions when needed. The fifth patch eliminates an extra clock reference previously used to control system suspend. The sixth eliminates the "IPA clock" reference count and mutex. The final patch replaces the one call to ipa_clock_get_additional() with a call to pm_runtime_get_if_active(), making the former unnecessary. -Alec Alex Elder (7): net: ipa: have ipa_clock_get() return a value net: ipa: disable clock in suspend net: ipa: resume in ipa_clock_get() net: ipa: use runtime PM core net: ipa: get rid of extra clock reference net: ipa: kill IPA clock reference count net: ipa: kill ipa_clock_get_additional() drivers/net/ipa/ipa_clock.c | 165 +++++++++++--------------------- drivers/net/ipa/ipa_clock.h | 18 ++-- drivers/net/ipa/ipa_interrupt.c | 9 +- drivers/net/ipa/ipa_main.c | 35 +++---- drivers/net/ipa/ipa_modem.c | 15 ++- drivers/net/ipa/ipa_smp2p.c | 33 ++++--- drivers/net/ipa/ipa_uc.c | 12 ++- 7 files changed, 121 insertions(+), 166 deletions(-) -- 2.27.0
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